Home / 15,841.35-21,861.01-8,573.43

Finding the Fourth Proportional to 15,841.35, 21,861.01 and 8,573.43

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Solution

The fourth proportional to 15,841.35, 21,861.01 and 8,573.43 is: 11,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.35 : 21,861.01 = 8,573.43 : x
  2. Step 2: Convert to fraction form
    15,841.35/21,861.01 = 8,573.43/x
  3. Step 3: Cross multiply
    15,841.35x = 21,861.01 × 8,573.43
  4. Step 4: Simplify right side
    15,841.35x = 187,423,931.66
  5. Step 5: Solve for x
    x = 187,423,931.66/15,841.35
  6. Step 6: Final answer
    x = 11,831.31

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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.