Home / 12,688.61-19,034.19-4,367.53

Finding the Fourth Proportional to 12,688.61, 19,034.19 and 4,367.53

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Solution

The fourth proportional to 12,688.61, 19,034.19 and 4,367.53 is: 6,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.61 : 19,034.19 = 4,367.53 : x
  2. Step 2: Convert to fraction form
    12,688.61/19,034.19 = 4,367.53/x
  3. Step 3: Cross multiply
    12,688.61x = 19,034.19 × 4,367.53
  4. Step 4: Simplify right side
    12,688.61x = 83,132,278.84
  5. Step 5: Solve for x
    x = 83,132,278.84/12,688.61
  6. Step 6: Final answer
    x = 6,551.72

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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.