Home / 10,251.04-15,378.96-3,678.64

Finding the Fourth Proportional to 10,251.04, 15,378.96 and 3,678.64

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Solution

The fourth proportional to 10,251.04, 15,378.96 and 3,678.64 is: 5,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.04 : 15,378.96 = 3,678.64 : x
  2. Step 2: Convert to fraction form
    10,251.04/15,378.96 = 3,678.64/x
  3. Step 3: Cross multiply
    10,251.04x = 15,378.96 × 3,678.64
  4. Step 4: Simplify right side
    10,251.04x = 56,573,657.41
  5. Step 5: Solve for x
    x = 56,573,657.41/10,251.04
  6. Step 6: Final answer
    x = 5,518.82

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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.