Home / 13,577.39-18,723.67-9,542.91

Finding the Fourth Proportional to 13,577.39, 18,723.67 and 9,542.91

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Solution

The fourth proportional to 13,577.39, 18,723.67 and 9,542.91 is: 13,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.39 : 18,723.67 = 9,542.91 : x
  2. Step 2: Convert to fraction form
    13,577.39/18,723.67 = 9,542.91/x
  3. Step 3: Cross multiply
    13,577.39x = 18,723.67 × 9,542.91
  4. Step 4: Simplify right side
    13,577.39x = 178,678,273.82
  5. Step 5: Solve for x
    x = 178,678,273.82/13,577.39
  6. Step 6: Final answer
    x = 13,159.99

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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.