Home / 10,405.38-15,606.91-2,614.21

Finding the Fourth Proportional to 10,405.38, 15,606.91 and 2,614.21

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Solution

The fourth proportional to 10,405.38, 15,606.91 and 2,614.21 is: 3,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.38 : 15,606.91 = 2,614.21 : x
  2. Step 2: Convert to fraction form
    10,405.38/15,606.91 = 2,614.21/x
  3. Step 3: Cross multiply
    10,405.38x = 15,606.91 × 2,614.21
  4. Step 4: Simplify right side
    10,405.38x = 40,799,740.19
  5. Step 5: Solve for x
    x = 40,799,740.19/10,405.38
  6. Step 6: Final answer
    x = 3,921.02

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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.