Home / 13,417.60-20,129.10-11,241.40

Finding the Fourth Proportional to 13,417.60, 20,129.10 and 11,241.40

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Solution

The fourth proportional to 13,417.60, 20,129.10 and 11,241.40 is: 16,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.60 : 20,129.10 = 11,241.40 : x
  2. Step 2: Convert to fraction form
    13,417.60/20,129.10 = 11,241.40/x
  3. Step 3: Cross multiply
    13,417.60x = 20,129.10 × 11,241.40
  4. Step 4: Simplify right side
    13,417.60x = 226,279,264.74
  5. Step 5: Solve for x
    x = 226,279,264.74/13,417.60
  6. Step 6: Final answer
    x = 16,864.36

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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.