Home / 10,691.12-14,754.84-6,715.28

Finding the Fourth Proportional to 10,691.12, 14,754.84 and 6,715.28

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Solution

The fourth proportional to 10,691.12, 14,754.84 and 6,715.28 is: 9,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.12 : 14,754.84 = 6,715.28 : x
  2. Step 2: Convert to fraction form
    10,691.12/14,754.84 = 6,715.28/x
  3. Step 3: Cross multiply
    10,691.12x = 14,754.84 × 6,715.28
  4. Step 4: Simplify right side
    10,691.12x = 99,082,881.96
  5. Step 5: Solve for x
    x = 99,082,881.96/10,691.12
  6. Step 6: Final answer
    x = 9,267.77

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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.