Home / 10,580.20-15,865.98-3,653.80

Finding the Fourth Proportional to 10,580.20, 15,865.98 and 3,653.80

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Solution

The fourth proportional to 10,580.20, 15,865.98 and 3,653.80 is: 5,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,580.20 : 15,865.98 = 3,653.80 : x
  2. Step 2: Convert to fraction form
    10,580.20/15,865.98 = 3,653.80/x
  3. Step 3: Cross multiply
    10,580.20x = 15,865.98 × 3,653.80
  4. Step 4: Simplify right side
    10,580.20x = 57,971,117.72
  5. Step 5: Solve for x
    x = 57,971,117.72/10,580.20
  6. Step 6: Final answer
    x = 5,479.21

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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.