Home / 18,463.31-27,691.85-5,312.63

Finding the Fourth Proportional to 18,463.31, 27,691.85 and 5,312.63

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Solution

The fourth proportional to 18,463.31, 27,691.85 and 5,312.63 is: 7,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.31 : 27,691.85 = 5,312.63 : x
  2. Step 2: Convert to fraction form
    18,463.31/27,691.85 = 5,312.63/x
  3. Step 3: Cross multiply
    18,463.31x = 27,691.85 × 5,312.63
  4. Step 4: Simplify right side
    18,463.31x = 147,116,553.07
  5. Step 5: Solve for x
    x = 147,116,553.07/18,463.31
  6. Step 6: Final answer
    x = 7,968.05

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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.