Home / 15,115.40-22,673.10-13,430.60

Finding the Fourth Proportional to 15,115.40, 22,673.10 and 13,430.60

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Solution

The fourth proportional to 15,115.40, 22,673.10 and 13,430.60 is: 20,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.40 : 22,673.10 = 13,430.60 : x
  2. Step 2: Convert to fraction form
    15,115.40/22,673.10 = 13,430.60/x
  3. Step 3: Cross multiply
    15,115.40x = 22,673.10 × 13,430.60
  4. Step 4: Simplify right side
    15,115.40x = 304,513,336.86
  5. Step 5: Solve for x
    x = 304,513,336.86/15,115.40
  6. Step 6: Final answer
    x = 20,145.90

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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.