Home / 10,191.12-14,069.88-6,660.24

Finding the Fourth Proportional to 10,191.12, 14,069.88 and 6,660.24

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Solution

The fourth proportional to 10,191.12, 14,069.88 and 6,660.24 is: 9,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.12 : 14,069.88 = 6,660.24 : x
  2. Step 2: Convert to fraction form
    10,191.12/14,069.88 = 6,660.24/x
  3. Step 3: Cross multiply
    10,191.12x = 14,069.88 × 6,660.24
  4. Step 4: Simplify right side
    10,191.12x = 93,708,777.57
  5. Step 5: Solve for x
    x = 93,708,777.57/10,191.12
  6. Step 6: Final answer
    x = 9,195.14

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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.