Home / 10,445.64-15,668.40-2,655.06

Finding the Fourth Proportional to 10,445.64, 15,668.40 and 2,655.06

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Solution

The fourth proportional to 10,445.64, 15,668.40 and 2,655.06 is: 3,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.64 : 15,668.40 = 2,655.06 : x
  2. Step 2: Convert to fraction form
    10,445.64/15,668.40 = 2,655.06/x
  3. Step 3: Cross multiply
    10,445.64x = 15,668.40 × 2,655.06
  4. Step 4: Simplify right side
    10,445.64x = 41,600,542.10
  5. Step 5: Solve for x
    x = 41,600,542.10/10,445.64
  6. Step 6: Final answer
    x = 3,982.57

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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.