Home / 9,478.22-13,080.30-5,287.28

Finding the Fourth Proportional to 9,478.22, 13,080.30 and 5,287.28

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Solution

The fourth proportional to 9,478.22, 13,080.30 and 5,287.28 is: 7,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.22 : 13,080.30 = 5,287.28 : x
  2. Step 2: Convert to fraction form
    9,478.22/13,080.30 = 5,287.28/x
  3. Step 3: Cross multiply
    9,478.22x = 13,080.30 × 5,287.28
  4. Step 4: Simplify right side
    9,478.22x = 69,159,208.58
  5. Step 5: Solve for x
    x = 69,159,208.58/9,478.22
  6. Step 6: Final answer
    x = 7,296.65

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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.