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Finding the Fourth Proportional to 8,513,659.52, 11,739,278.40 and 6,960,118.40

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Solution

The fourth proportional to 8,513,659.52, 11,739,278.40 and 6,960,118.40 is: 9,597,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513,659.52 : 11,739,278.40 = 6,960,118.40 : x
  2. Step 2: Convert to fraction form
    8,513,659.52/11,739,278.40 = 6,960,118.40/x
  3. Step 3: Cross multiply
    8,513,659.52x = 11,739,278.40 × 6,960,118.40
  4. Step 4: Simplify right side
    8,513,659.52x = 81,706,767,594,562.56
  5. Step 5: Solve for x
    x = 81,706,767,594,562.56/8,513,659.52
  6. Step 6: Final answer
    x = 9,597,138.27

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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.