Home / 14,654.90-20,223.30-8,281.76

Finding the Fourth Proportional to 14,654.90, 20,223.30 and 8,281.76

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Solution

The fourth proportional to 14,654.90, 20,223.30 and 8,281.76 is: 11,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.90 : 20,223.30 = 8,281.76 : x
  2. Step 2: Convert to fraction form
    14,654.90/20,223.30 = 8,281.76/x
  3. Step 3: Cross multiply
    14,654.90x = 20,223.30 × 8,281.76
  4. Step 4: Simplify right side
    14,654.90x = 167,484,517.01
  5. Step 5: Solve for x
    x = 167,484,517.01/14,654.90
  6. Step 6: Final answer
    x = 11,428.57

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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.