Home / 8,284.82-12,425.30-5,314.28

Finding the Fourth Proportional to 8,284.82, 12,425.30 and 5,314.28

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Solution

The fourth proportional to 8,284.82, 12,425.30 and 5,314.28 is: 7,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.82 : 12,425.30 = 5,314.28 : x
  2. Step 2: Convert to fraction form
    8,284.82/12,425.30 = 5,314.28/x
  3. Step 3: Cross multiply
    8,284.82x = 12,425.30 × 5,314.28
  4. Step 4: Simplify right side
    8,284.82x = 66,031,496.71
  5. Step 5: Solve for x
    x = 66,031,496.71/8,284.82
  6. Step 6: Final answer
    x = 7,970.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.