Home / 10,621.13-15,929.19-4,374.95

Finding the Fourth Proportional to 10,621.13, 15,929.19 and 4,374.95

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Solution

The fourth proportional to 10,621.13, 15,929.19 and 4,374.95 is: 6,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.13 : 15,929.19 = 4,374.95 : x
  2. Step 2: Convert to fraction form
    10,621.13/15,929.19 = 4,374.95/x
  3. Step 3: Cross multiply
    10,621.13x = 15,929.19 × 4,374.95
  4. Step 4: Simplify right side
    10,621.13x = 69,689,330.14
  5. Step 5: Solve for x
    x = 69,689,330.14/10,621.13
  6. Step 6: Final answer
    x = 6,561.39

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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.