Home / 18,960.24-28,437.12-5,106

Finding the Fourth Proportional to 18,960.24, 28,437.12 and 5,106

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Solution

The fourth proportional to 18,960.24, 28,437.12 and 5,106 is: 7,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.24 : 28,437.12 = 5,106 : x
  2. Step 2: Convert to fraction form
    18,960.24/28,437.12 = 5,106/x
  3. Step 3: Cross multiply
    18,960.24x = 28,437.12 × 5,106
  4. Step 4: Simplify right side
    18,960.24x = 145,199,934.72
  5. Step 5: Solve for x
    x = 145,199,934.72/18,960.24
  6. Step 6: Final answer
    x = 7,658.13

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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.