Home / 10,218.54-14,108.04-6,687.72

Finding the Fourth Proportional to 10,218.54, 14,108.04 and 6,687.72

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Solution

The fourth proportional to 10,218.54, 14,108.04 and 6,687.72 is: 9,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.54 : 14,108.04 = 6,687.72 : x
  2. Step 2: Convert to fraction form
    10,218.54/14,108.04 = 6,687.72/x
  3. Step 3: Cross multiply
    10,218.54x = 14,108.04 × 6,687.72
  4. Step 4: Simplify right side
    10,218.54x = 94,350,621.27
  5. Step 5: Solve for x
    x = 94,350,621.27/10,218.54
  6. Step 6: Final answer
    x = 9,233.28

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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.