Home / 10,379.14-15,567.80-2,587.95

Finding the Fourth Proportional to 10,379.14, 15,567.80 and 2,587.95

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Solution

The fourth proportional to 10,379.14, 15,567.80 and 2,587.95 is: 3,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.14 : 15,567.80 = 2,587.95 : x
  2. Step 2: Convert to fraction form
    10,379.14/15,567.80 = 2,587.95/x
  3. Step 3: Cross multiply
    10,379.14x = 15,567.80 × 2,587.95
  4. Step 4: Simplify right side
    10,379.14x = 40,288,675.07
  5. Step 5: Solve for x
    x = 40,288,675.07/10,379.14
  6. Step 6: Final answer
    x = 3,881.70

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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.