Home / 12,041.10-18,061.65-5,129.10

Finding the Fourth Proportional to 12,041.10, 18,061.65 and 5,129.10

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Solution

The fourth proportional to 12,041.10, 18,061.65 and 5,129.10 is: 7,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.10 : 18,061.65 = 5,129.10 : x
  2. Step 2: Convert to fraction form
    12,041.10/18,061.65 = 5,129.10/x
  3. Step 3: Cross multiply
    12,041.10x = 18,061.65 × 5,129.10
  4. Step 4: Simplify right side
    12,041.10x = 92,640,009.02
  5. Step 5: Solve for x
    x = 92,640,009.02/12,041.10
  6. Step 6: Final answer
    x = 7,693.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.