Home / 10,460.08-15,678.78-4,909.96

Finding the Fourth Proportional to 10,460.08, 15,678.78 and 4,909.96

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Solution

The fourth proportional to 10,460.08, 15,678.78 and 4,909.96 is: 7,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,460.08 : 15,678.78 = 4,909.96 : x
  2. Step 2: Convert to fraction form
    10,460.08/15,678.78 = 4,909.96/x
  3. Step 3: Cross multiply
    10,460.08x = 15,678.78 × 4,909.96
  4. Step 4: Simplify right side
    10,460.08x = 76,982,182.65
  5. Step 5: Solve for x
    x = 76,982,182.65/10,460.08
  6. Step 6: Final answer
    x = 7,359.62

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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.