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Finding the Fourth Proportional to 18,461.91, 27,686.08 and 6,612.42

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Solution

The fourth proportional to 18,461.91, 27,686.08 and 6,612.42 is: 9,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.91 : 27,686.08 = 6,612.42 : x
  2. Step 2: Convert to fraction form
    18,461.91/27,686.08 = 6,612.42/x
  3. Step 3: Cross multiply
    18,461.91x = 27,686.08 × 6,612.42
  4. Step 4: Simplify right side
    18,461.91x = 183,071,989.11
  5. Step 5: Solve for x
    x = 183,071,989.11/18,461.91
  6. Step 6: Final answer
    x = 9,916.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.