Home / 15,425.05-21,284.26-8,710.52

Finding the Fourth Proportional to 15,425.05, 21,284.26 and 8,710.52

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Solution

The fourth proportional to 15,425.05, 21,284.26 and 8,710.52 is: 12,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.05 : 21,284.26 = 8,710.52 : x
  2. Step 2: Convert to fraction form
    15,425.05/21,284.26 = 8,710.52/x
  3. Step 3: Cross multiply
    15,425.05x = 21,284.26 × 8,710.52
  4. Step 4: Simplify right side
    15,425.05x = 185,396,972.42
  5. Step 5: Solve for x
    x = 185,396,972.42/15,425.05
  6. Step 6: Final answer
    x = 12,019.21

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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.