Home / 9,144.10-12,618.84-5,166.04

Finding the Fourth Proportional to 9,144.10, 12,618.84 and 5,166.04

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Solution

The fourth proportional to 9,144.10, 12,618.84 and 5,166.04 is: 7,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.10 : 12,618.84 = 5,166.04 : x
  2. Step 2: Convert to fraction form
    9,144.10/12,618.84 = 5,166.04/x
  3. Step 3: Cross multiply
    9,144.10x = 12,618.84 × 5,166.04
  4. Step 4: Simplify right side
    9,144.10x = 65,189,432.19
  5. Step 5: Solve for x
    x = 65,189,432.19/9,144.10
  6. Step 6: Final answer
    x = 7,129.13

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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.