Home / 9,419.07-12,999.12-5,170.95

Finding the Fourth Proportional to 9,419.07, 12,999.12 and 5,170.95

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Solution

The fourth proportional to 9,419.07, 12,999.12 and 5,170.95 is: 7,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.07 : 12,999.12 = 5,170.95 : x
  2. Step 2: Convert to fraction form
    9,419.07/12,999.12 = 5,170.95/x
  3. Step 3: Cross multiply
    9,419.07x = 12,999.12 × 5,170.95
  4. Step 4: Simplify right side
    9,419.07x = 67,217,799.56
  5. Step 5: Solve for x
    x = 67,217,799.56/9,419.07
  6. Step 6: Final answer
    x = 7,136.35

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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.