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Finding the Fourth Proportional to 8,666.68, 11,957.52 and 4,889.66

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Solution

The fourth proportional to 8,666.68, 11,957.52 and 4,889.66 is: 6,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.68 : 11,957.52 = 4,889.66 : x
  2. Step 2: Convert to fraction form
    8,666.68/11,957.52 = 4,889.66/x
  3. Step 3: Cross multiply
    8,666.68x = 11,957.52 × 4,889.66
  4. Step 4: Simplify right side
    8,666.68x = 58,468,207.24
  5. Step 5: Solve for x
    x = 58,468,207.24/8,666.68
  6. Step 6: Final answer
    x = 6,746.32

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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.