Home / 15,705.30-21,677.07-8,994.81

Finding the Fourth Proportional to 15,705.30, 21,677.07 and 8,994.81

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Solution

The fourth proportional to 15,705.30, 21,677.07 and 8,994.81 is: 12,414.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.30 : 21,677.07 = 8,994.81 : x
  2. Step 2: Convert to fraction form
    15,705.30/21,677.07 = 8,994.81/x
  3. Step 3: Cross multiply
    15,705.30x = 21,677.07 × 8,994.81
  4. Step 4: Simplify right side
    15,705.30x = 194,981,126.01
  5. Step 5: Solve for x
    x = 194,981,126.01/15,705.30
  6. Step 6: Final answer
    x = 12,414.99

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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.