Home / 15,239.11-21,034.19-8,866.93

Finding the Fourth Proportional to 15,239.11, 21,034.19 and 8,866.93

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Solution

The fourth proportional to 15,239.11, 21,034.19 and 8,866.93 is: 12,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.11 : 21,034.19 = 8,866.93 : x
  2. Step 2: Convert to fraction form
    15,239.11/21,034.19 = 8,866.93/x
  3. Step 3: Cross multiply
    15,239.11x = 21,034.19 × 8,866.93
  4. Step 4: Simplify right side
    15,239.11x = 186,508,659.92
  5. Step 5: Solve for x
    x = 186,508,659.92/15,239.11
  6. Step 6: Final answer
    x = 12,238.82

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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.