Home / 9,000.68-12,421.52-5,022.40

Finding the Fourth Proportional to 9,000.68, 12,421.52 and 5,022.40

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Solution

The fourth proportional to 9,000.68, 12,421.52 and 5,022.40 is: 6,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.68 : 12,421.52 = 5,022.40 : x
  2. Step 2: Convert to fraction form
    9,000.68/12,421.52 = 5,022.40/x
  3. Step 3: Cross multiply
    9,000.68x = 12,421.52 × 5,022.40
  4. Step 4: Simplify right side
    9,000.68x = 62,385,842.05
  5. Step 5: Solve for x
    x = 62,385,842.05/9,000.68
  6. Step 6: Final answer
    x = 6,931.24

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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.