Home / 9,275.28-12,799.68-5,296.40

Finding the Fourth Proportional to 9,275.28, 12,799.68 and 5,296.40

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Solution

The fourth proportional to 9,275.28, 12,799.68 and 5,296.40 is: 7,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,275.28 : 12,799.68 = 5,296.40 : x
  2. Step 2: Convert to fraction form
    9,275.28/12,799.68 = 5,296.40/x
  3. Step 3: Cross multiply
    9,275.28x = 12,799.68 × 5,296.40
  4. Step 4: Simplify right side
    9,275.28x = 67,792,225.15
  5. Step 5: Solve for x
    x = 67,792,225.15/9,275.28
  6. Step 6: Final answer
    x = 7,308.91

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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.