Home / 10,320.35-15,470.01-4,071.78

Finding the Fourth Proportional to 10,320.35, 15,470.01 and 4,071.78

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Solution

The fourth proportional to 10,320.35, 15,470.01 and 4,071.78 is: 6,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.35 : 15,470.01 = 4,071.78 : x
  2. Step 2: Convert to fraction form
    10,320.35/15,470.01 = 4,071.78/x
  3. Step 3: Cross multiply
    10,320.35x = 15,470.01 × 4,071.78
  4. Step 4: Simplify right side
    10,320.35x = 62,990,477.32
  5. Step 5: Solve for x
    x = 62,990,477.32/10,320.35
  6. Step 6: Final answer
    x = 6,103.52

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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.