Home / 9,120.58-12,585.18-5,292.12

Finding the Fourth Proportional to 9,120.58, 12,585.18 and 5,292.12

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Solution

The fourth proportional to 9,120.58, 12,585.18 and 5,292.12 is: 7,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.58 : 12,585.18 = 5,292.12 : x
  2. Step 2: Convert to fraction form
    9,120.58/12,585.18 = 5,292.12/x
  3. Step 3: Cross multiply
    9,120.58x = 12,585.18 × 5,292.12
  4. Step 4: Simplify right side
    9,120.58x = 66,602,249.26
  5. Step 5: Solve for x
    x = 66,602,249.26/9,120.58
  6. Step 6: Final answer
    x = 7,302.41

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Half scale
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Double scale
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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.