Home / 8,612.12-11,882.08-5,423.96

Finding the Fourth Proportional to 8,612.12, 11,882.08 and 5,423.96

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Solution

The fourth proportional to 8,612.12, 11,882.08 and 5,423.96 is: 7,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.12 : 11,882.08 = 5,423.96 : x
  2. Step 2: Convert to fraction form
    8,612.12/11,882.08 = 5,423.96/x
  3. Step 3: Cross multiply
    8,612.12x = 11,882.08 × 5,423.96
  4. Step 4: Simplify right side
    8,612.12x = 64,447,926.64
  5. Step 5: Solve for x
    x = 64,447,926.64/8,612.12
  6. Step 6: Final answer
    x = 7,483.40

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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.