Home / 12,000.24-18,008.60-4,209.04

Finding the Fourth Proportional to 12,000.24, 18,008.60 and 4,209.04

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Solution

The fourth proportional to 12,000.24, 18,008.60 and 4,209.04 is: 6,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.24 : 18,008.60 = 4,209.04 : x
  2. Step 2: Convert to fraction form
    12,000.24/18,008.60 = 4,209.04/x
  3. Step 3: Cross multiply
    12,000.24x = 18,008.60 × 4,209.04
  4. Step 4: Simplify right side
    12,000.24x = 75,798,917.74
  5. Step 5: Solve for x
    x = 75,798,917.74/12,000.24
  6. Step 6: Final answer
    x = 6,316.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.