Home / 13,177.20-18,184.95-7,209.03

Finding the Fourth Proportional to 13,177.20, 18,184.95 and 7,209.03

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Solution

The fourth proportional to 13,177.20, 18,184.95 and 7,209.03 is: 9,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.20 : 18,184.95 = 7,209.03 : x
  2. Step 2: Convert to fraction form
    13,177.20/18,184.95 = 7,209.03/x
  3. Step 3: Cross multiply
    13,177.20x = 18,184.95 × 7,209.03
  4. Step 4: Simplify right side
    13,177.20x = 131,095,850.10
  5. Step 5: Solve for x
    x = 131,095,850.10/13,177.20
  6. Step 6: Final answer
    x = 9,948.69

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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.