Home / 10,526.76-15,787.44-3,129.48

Finding the Fourth Proportional to 10,526.76, 15,787.44 and 3,129.48

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Solution

The fourth proportional to 10,526.76, 15,787.44 and 3,129.48 is: 4,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.76 : 15,787.44 = 3,129.48 : x
  2. Step 2: Convert to fraction form
    10,526.76/15,787.44 = 3,129.48/x
  3. Step 3: Cross multiply
    10,526.76x = 15,787.44 × 3,129.48
  4. Step 4: Simplify right side
    10,526.76x = 49,406,477.73
  5. Step 5: Solve for x
    x = 49,406,477.73/10,526.76
  6. Step 6: Final answer
    x = 4,693.42

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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.