Home / 10,436.52-15,725.25-8,628.12

Finding the Fourth Proportional to 10,436.52, 15,725.25 and 8,628.12

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Solution

The fourth proportional to 10,436.52, 15,725.25 and 8,628.12 is: 13,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.52 : 15,725.25 = 8,628.12 : x
  2. Step 2: Convert to fraction form
    10,436.52/15,725.25 = 8,628.12/x
  3. Step 3: Cross multiply
    10,436.52x = 15,725.25 × 8,628.12
  4. Step 4: Simplify right side
    10,436.52x = 135,679,344.03
  5. Step 5: Solve for x
    x = 135,679,344.03/10,436.52
  6. Step 6: Final answer
    x = 13,000.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.