Home / 9,153.02-12,631.08-5,119.80

Finding the Fourth Proportional to 9,153.02, 12,631.08 and 5,119.80

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Solution

The fourth proportional to 9,153.02, 12,631.08 and 5,119.80 is: 7,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.02 : 12,631.08 = 5,119.80 : x
  2. Step 2: Convert to fraction form
    9,153.02/12,631.08 = 5,119.80/x
  3. Step 3: Cross multiply
    9,153.02x = 12,631.08 × 5,119.80
  4. Step 4: Simplify right side
    9,153.02x = 64,668,603.38
  5. Step 5: Solve for x
    x = 64,668,603.38/9,153.02
  6. Step 6: Final answer
    x = 7,065.27

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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.