Home / 15,134.04-20,889.95-13,537.87

Finding the Fourth Proportional to 15,134.04, 20,889.95 and 13,537.87

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Solution

The fourth proportional to 15,134.04, 20,889.95 and 13,537.87 is: 18,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.04 : 20,889.95 = 13,537.87 : x
  2. Step 2: Convert to fraction form
    15,134.04/20,889.95 = 13,537.87/x
  3. Step 3: Cross multiply
    15,134.04x = 20,889.95 × 13,537.87
  4. Step 4: Simplify right side
    15,134.04x = 282,805,471.77
  5. Step 5: Solve for x
    x = 282,805,471.77/15,134.04
  6. Step 6: Final answer
    x = 18,686.71

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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.