Home / 10,555.65-15,827.62-4,320.04

Finding the Fourth Proportional to 10,555.65, 15,827.62 and 4,320.04

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Solution

The fourth proportional to 10,555.65, 15,827.62 and 4,320.04 is: 6,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.65 : 15,827.62 = 4,320.04 : x
  2. Step 2: Convert to fraction form
    10,555.65/15,827.62 = 4,320.04/x
  3. Step 3: Cross multiply
    10,555.65x = 15,827.62 × 4,320.04
  4. Step 4: Simplify right side
    10,555.65x = 68,375,951.50
  5. Step 5: Solve for x
    x = 68,375,951.50/10,555.65
  6. Step 6: Final answer
    x = 6,477.66

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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.