Home / 9,478.92-13,080.84-5,287.08

Finding the Fourth Proportional to 9,478.92, 13,080.84 and 5,287.08

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Solution

The fourth proportional to 9,478.92, 13,080.84 and 5,287.08 is: 7,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.92 : 13,080.84 = 5,287.08 : x
  2. Step 2: Convert to fraction form
    9,478.92/13,080.84 = 5,287.08/x
  3. Step 3: Cross multiply
    9,478.92x = 13,080.84 × 5,287.08
  4. Step 4: Simplify right side
    9,478.92x = 69,159,447.55
  5. Step 5: Solve for x
    x = 69,159,447.55/9,478.92
  6. Step 6: Final answer
    x = 7,296.13

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Double scale
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Similar ratio
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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.