Home / 10,930.95-15,079.37-7,152.44

Finding the Fourth Proportional to 10,930.95, 15,079.37 and 7,152.44

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Solution

The fourth proportional to 10,930.95, 15,079.37 and 7,152.44 is: 9,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.95 : 15,079.37 = 7,152.44 : x
  2. Step 2: Convert to fraction form
    10,930.95/15,079.37 = 7,152.44/x
  3. Step 3: Cross multiply
    10,930.95x = 15,079.37 × 7,152.44
  4. Step 4: Simplify right side
    10,930.95x = 107,854,178.00
  5. Step 5: Solve for x
    x = 107,854,178.00/10,930.95
  6. Step 6: Final answer
    x = 9,866.86

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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.