Home / 9,478.03-13,080.57-5,445.43

Finding the Fourth Proportional to 9,478.03, 13,080.57 and 5,445.43

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Solution

The fourth proportional to 9,478.03, 13,080.57 and 5,445.43 is: 7,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.03 : 13,080.57 = 5,445.43 : x
  2. Step 2: Convert to fraction form
    9,478.03/13,080.57 = 5,445.43/x
  3. Step 3: Cross multiply
    9,478.03x = 13,080.57 × 5,445.43
  4. Step 4: Simplify right side
    9,478.03x = 71,229,328.30
  5. Step 5: Solve for x
    x = 71,229,328.30/9,478.03
  6. Step 6: Final answer
    x = 7,515.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.