Home / 15,024.98-20,731.05-8,972.46

Finding the Fourth Proportional to 15,024.98, 20,731.05 and 8,972.46

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Solution

The fourth proportional to 15,024.98, 20,731.05 and 8,972.46 is: 12,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.98 : 20,731.05 = 8,972.46 : x
  2. Step 2: Convert to fraction form
    15,024.98/20,731.05 = 8,972.46/x
  3. Step 3: Cross multiply
    15,024.98x = 20,731.05 × 8,972.46
  4. Step 4: Simplify right side
    15,024.98x = 186,008,516.88
  5. Step 5: Solve for x
    x = 186,008,516.88/15,024.98
  6. Step 6: Final answer
    x = 12,379.95

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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.