Home / 18,207.99-25,125.29-13,430.53

Finding the Fourth Proportional to 18,207.99, 25,125.29 and 13,430.53

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Solution

The fourth proportional to 18,207.99, 25,125.29 and 13,430.53 is: 18,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.99 : 25,125.29 = 13,430.53 : x
  2. Step 2: Convert to fraction form
    18,207.99/25,125.29 = 13,430.53/x
  3. Step 3: Cross multiply
    18,207.99x = 25,125.29 × 13,430.53
  4. Step 4: Simplify right side
    18,207.99x = 337,446,046.39
  5. Step 5: Solve for x
    x = 337,446,046.39/18,207.99
  6. Step 6: Final answer
    x = 18,532.86

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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.