Home / 18,211.71-25,130.33-13,434.24

Finding the Fourth Proportional to 18,211.71, 25,130.33 and 13,434.24

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Solution

The fourth proportional to 18,211.71, 25,130.33 and 13,434.24 is: 18,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.71 : 25,130.33 = 13,434.24 : x
  2. Step 2: Convert to fraction form
    18,211.71/25,130.33 = 13,434.24/x
  3. Step 3: Cross multiply
    18,211.71x = 25,130.33 × 13,434.24
  4. Step 4: Simplify right side
    18,211.71x = 337,606,896.15
  5. Step 5: Solve for x
    x = 337,606,896.15/18,211.71
  6. Step 6: Final answer
    x = 18,537.90

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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.