Home / 9,287.39-12,813.48-5,305.68

Finding the Fourth Proportional to 9,287.39, 12,813.48 and 5,305.68

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Solution

The fourth proportional to 9,287.39, 12,813.48 and 5,305.68 is: 7,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.39 : 12,813.48 = 5,305.68 : x
  2. Step 2: Convert to fraction form
    9,287.39/12,813.48 = 5,305.68/x
  3. Step 3: Cross multiply
    9,287.39x = 12,813.48 × 5,305.68
  4. Step 4: Simplify right side
    9,287.39x = 67,984,272.62
  5. Step 5: Solve for x
    x = 67,984,272.62/9,287.39
  6. Step 6: Final answer
    x = 7,320.06

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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.