Home / 18,342.72-25,312.68-10,789.92

Finding the Fourth Proportional to 18,342.72, 25,312.68 and 10,789.92

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Solution

The fourth proportional to 18,342.72, 25,312.68 and 10,789.92 is: 14,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.72 : 25,312.68 = 10,789.92 : x
  2. Step 2: Convert to fraction form
    18,342.72/25,312.68 = 10,789.92/x
  3. Step 3: Cross multiply
    18,342.72x = 25,312.68 × 10,789.92
  4. Step 4: Simplify right side
    18,342.72x = 273,121,792.19
  5. Step 5: Solve for x
    x = 273,121,792.19/18,342.72
  6. Step 6: Final answer
    x = 14,889.93

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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.