Home / 12,101.05-16,700.28-6,724.12

Finding the Fourth Proportional to 12,101.05, 16,700.28 and 6,724.12

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Solution

The fourth proportional to 12,101.05, 16,700.28 and 6,724.12 is: 9,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.05 : 16,700.28 = 6,724.12 : x
  2. Step 2: Convert to fraction form
    12,101.05/16,700.28 = 6,724.12/x
  3. Step 3: Cross multiply
    12,101.05x = 16,700.28 × 6,724.12
  4. Step 4: Simplify right side
    12,101.05x = 112,294,686.75
  5. Step 5: Solve for x
    x = 112,294,686.75/12,101.05
  6. Step 6: Final answer
    x = 9,279.75

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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.