Home / 9,000.08-12,419.52-5,642.75

Finding the Fourth Proportional to 9,000.08, 12,419.52 and 5,642.75

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Solution

The fourth proportional to 9,000.08, 12,419.52 and 5,642.75 is: 7,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.08 : 12,419.52 = 5,642.75 : x
  2. Step 2: Convert to fraction form
    9,000.08/12,419.52 = 5,642.75/x
  3. Step 3: Cross multiply
    9,000.08x = 12,419.52 × 5,642.75
  4. Step 4: Simplify right side
    9,000.08x = 70,080,246.48
  5. Step 5: Solve for x
    x = 70,080,246.48/9,000.08
  6. Step 6: Final answer
    x = 7,786.62

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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.