Home / 15,006.47-20,708.84-8,292.56

Finding the Fourth Proportional to 15,006.47, 20,708.84 and 8,292.56

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Solution

The fourth proportional to 15,006.47, 20,708.84 and 8,292.56 is: 11,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.47 : 20,708.84 = 8,292.56 : x
  2. Step 2: Convert to fraction form
    15,006.47/20,708.84 = 8,292.56/x
  3. Step 3: Cross multiply
    15,006.47x = 20,708.84 × 8,292.56
  4. Step 4: Simplify right side
    15,006.47x = 171,729,215.42
  5. Step 5: Solve for x
    x = 171,729,215.42/15,006.47
  6. Step 6: Final answer
    x = 11,443.68

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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.