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Finding the Fourth Proportional to 9,168.52, 12,630.14 and 6,643.16

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Solution

The fourth proportional to 9,168.52, 12,630.14 and 6,643.16 is: 9,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.52 : 12,630.14 = 6,643.16 : x
  2. Step 2: Convert to fraction form
    9,168.52/12,630.14 = 6,643.16/x
  3. Step 3: Cross multiply
    9,168.52x = 12,630.14 × 6,643.16
  4. Step 4: Simplify right side
    9,168.52x = 83,904,040.84
  5. Step 5: Solve for x
    x = 83,904,040.84/9,168.52
  6. Step 6: Final answer
    x = 9,151.32

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Half scale
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Double scale
Find fourth proportional to 9,169.52, 12,631.52 and 6,644.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.