Home / 15,766.50-21,757.93-8,693.17

Finding the Fourth Proportional to 15,766.50, 21,757.93 and 8,693.17

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Solution

The fourth proportional to 15,766.50, 21,757.93 and 8,693.17 is: 11,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.50 : 21,757.93 = 8,693.17 : x
  2. Step 2: Convert to fraction form
    15,766.50/21,757.93 = 8,693.17/x
  3. Step 3: Cross multiply
    15,766.50x = 21,757.93 × 8,693.17
  4. Step 4: Simplify right side
    15,766.50x = 189,145,384.34
  5. Step 5: Solve for x
    x = 189,145,384.34/15,766.50
  6. Step 6: Final answer
    x = 11,996.66

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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.