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Finding the Third Proportional to 4,139.13 and 8,870.19

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Solution

The third proportional to 4,139.13 and 8,870.19 is: 19,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.13 : 8,870.19 = 8,870.19 : x
  2. Step 2: Convert to fraction form
    4,139.13/8,870.19 = 8,870.19/x
  3. Step 3: Cross multiply
    4,139.13x = 8,870.19 × 8,870.19
  4. Step 4: Simplify right side
    4,139.13x = 78,680,226.29
  5. Step 5: Solve for x
    x = 78,680,226.29/4,139.13
  6. Step 6: Final answer
    x = 19,008.90

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.