Home / 15,191.55-20,974.10-9,534.06

Finding the Fourth Proportional to 15,191.55, 20,974.10 and 9,534.06

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Solution

The fourth proportional to 15,191.55, 20,974.10 and 9,534.06 is: 13,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.55 : 20,974.10 = 9,534.06 : x
  2. Step 2: Convert to fraction form
    15,191.55/20,974.10 = 9,534.06/x
  3. Step 3: Cross multiply
    15,191.55x = 20,974.10 × 9,534.06
  4. Step 4: Simplify right side
    15,191.55x = 199,968,280.18
  5. Step 5: Solve for x
    x = 199,968,280.18/15,191.55
  6. Step 6: Final answer
    x = 13,163.13

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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.