Home / 10,480.26-15,720.40-2,582.78

Finding the Fourth Proportional to 10,480.26, 15,720.40 and 2,582.78

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Solution

The fourth proportional to 10,480.26, 15,720.40 and 2,582.78 is: 3,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.26 : 15,720.40 = 2,582.78 : x
  2. Step 2: Convert to fraction form
    10,480.26/15,720.40 = 2,582.78/x
  3. Step 3: Cross multiply
    10,480.26x = 15,720.40 × 2,582.78
  4. Step 4: Simplify right side
    10,480.26x = 40,602,256.11
  5. Step 5: Solve for x
    x = 40,602,256.11/10,480.26
  6. Step 6: Final answer
    x = 3,874.16

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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.