Home / 19,139.98-28,718.18-8,049.16

Finding the Fourth Proportional to 19,139.98, 28,718.18 and 8,049.16

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Solution

The fourth proportional to 19,139.98, 28,718.18 and 8,049.16 is: 12,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.98 : 28,718.18 = 8,049.16 : x
  2. Step 2: Convert to fraction form
    19,139.98/28,718.18 = 8,049.16/x
  3. Step 3: Cross multiply
    19,139.98x = 28,718.18 × 8,049.16
  4. Step 4: Simplify right side
    19,139.98x = 231,157,225.73
  5. Step 5: Solve for x
    x = 231,157,225.73/19,139.98
  6. Step 6: Final answer
    x = 12,077.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.