Home / 13,177.16-18,184.85-7,209.18

Finding the Fourth Proportional to 13,177.16, 18,184.85 and 7,209.18

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Solution

The fourth proportional to 13,177.16, 18,184.85 and 7,209.18 is: 9,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.16 : 18,184.85 = 7,209.18 : x
  2. Step 2: Convert to fraction form
    13,177.16/18,184.85 = 7,209.18/x
  3. Step 3: Cross multiply
    13,177.16x = 18,184.85 × 7,209.18
  4. Step 4: Simplify right side
    13,177.16x = 131,097,820.88
  5. Step 5: Solve for x
    x = 131,097,820.88/13,177.16
  6. Step 6: Final answer
    x = 9,948.87

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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.