Home / 13,423.02-20,144.92-9,291.90

Finding the Fourth Proportional to 13,423.02, 20,144.92 and 9,291.90

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Solution

The fourth proportional to 13,423.02, 20,144.92 and 9,291.90 is: 13,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.02 : 20,144.92 = 9,291.90 : x
  2. Step 2: Convert to fraction form
    13,423.02/20,144.92 = 9,291.90/x
  3. Step 3: Cross multiply
    13,423.02x = 20,144.92 × 9,291.90
  4. Step 4: Simplify right side
    13,423.02x = 187,184,582.15
  5. Step 5: Solve for x
    x = 187,184,582.15/13,423.02
  6. Step 6: Final answer
    x = 13,945.04

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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.