Home / 14,586.30-21,879.45-9,920.70

Finding the Fourth Proportional to 14,586.30, 21,879.45 and 9,920.70

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Solution

The fourth proportional to 14,586.30, 21,879.45 and 9,920.70 is: 14,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.30 : 21,879.45 = 9,920.70 : x
  2. Step 2: Convert to fraction form
    14,586.30/21,879.45 = 9,920.70/x
  3. Step 3: Cross multiply
    14,586.30x = 21,879.45 × 9,920.70
  4. Step 4: Simplify right side
    14,586.30x = 217,059,459.62
  5. Step 5: Solve for x
    x = 217,059,459.62/14,586.30
  6. Step 6: Final answer
    x = 14,881.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.