Home / 15,951.34-21,990.18-11,473.66

Finding the Fourth Proportional to 15,951.34, 21,990.18 and 11,473.66

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Solution

The fourth proportional to 15,951.34, 21,990.18 and 11,473.66 is: 15,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.34 : 21,990.18 = 11,473.66 : x
  2. Step 2: Convert to fraction form
    15,951.34/21,990.18 = 11,473.66/x
  3. Step 3: Cross multiply
    15,951.34x = 21,990.18 × 11,473.66
  4. Step 4: Simplify right side
    15,951.34x = 252,307,848.66
  5. Step 5: Solve for x
    x = 252,307,848.66/15,951.34
  6. Step 6: Final answer
    x = 15,817.35

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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.