Home / 9,139.68-13,707.79-4,454.98

Finding the Fourth Proportional to 9,139.68, 13,707.79 and 4,454.98

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Solution

The fourth proportional to 9,139.68, 13,707.79 and 4,454.98 is: 6,681.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.68 : 13,707.79 = 4,454.98 : x
  2. Step 2: Convert to fraction form
    9,139.68/13,707.79 = 4,454.98/x
  3. Step 3: Cross multiply
    9,139.68x = 13,707.79 × 4,454.98
  4. Step 4: Simplify right side
    9,139.68x = 61,067,908.02
  5. Step 5: Solve for x
    x = 61,067,908.02/9,139.68
  6. Step 6: Final answer
    x = 6,681.63

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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.