Home / 15,049.13-20,777.84-9,386.15

Finding the Fourth Proportional to 15,049.13, 20,777.84 and 9,386.15

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Solution

The fourth proportional to 15,049.13, 20,777.84 and 9,386.15 is: 12,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.13 : 20,777.84 = 9,386.15 : x
  2. Step 2: Convert to fraction form
    15,049.13/20,777.84 = 9,386.15/x
  3. Step 3: Cross multiply
    15,049.13x = 20,777.84 × 9,386.15
  4. Step 4: Simplify right side
    15,049.13x = 195,023,772.10
  5. Step 5: Solve for x
    x = 195,023,772.10/15,049.13
  6. Step 6: Final answer
    x = 12,959.14

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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.