Home / 13,541.28-18,686.88-7,572.92

Finding the Fourth Proportional to 13,541.28, 18,686.88 and 7,572.92

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Solution

The fourth proportional to 13,541.28, 18,686.88 and 7,572.92 is: 10,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.28 : 18,686.88 = 7,572.92 : x
  2. Step 2: Convert to fraction form
    13,541.28/18,686.88 = 7,572.92/x
  3. Step 3: Cross multiply
    13,541.28x = 18,686.88 × 7,572.92
  4. Step 4: Simplify right side
    13,541.28x = 141,514,247.29
  5. Step 5: Solve for x
    x = 141,514,247.29/13,541.28
  6. Step 6: Final answer
    x = 10,450.58

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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.