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Finding the Fourth Proportional to 8,665.95, 11,959.05 and 4,687.08

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Solution

The fourth proportional to 8,665.95, 11,959.05 and 4,687.08 is: 6,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.95 : 11,959.05 = 4,687.08 : x
  2. Step 2: Convert to fraction form
    8,665.95/11,959.05 = 4,687.08/x
  3. Step 3: Cross multiply
    8,665.95x = 11,959.05 × 4,687.08
  4. Step 4: Simplify right side
    8,665.95x = 56,053,024.07
  5. Step 5: Solve for x
    x = 56,053,024.07/8,665.95
  6. Step 6: Final answer
    x = 6,468.19

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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.