Home / 10,204.39-15,312.49-4,280.75

Finding the Fourth Proportional to 10,204.39, 15,312.49 and 4,280.75

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Solution

The fourth proportional to 10,204.39, 15,312.49 and 4,280.75 is: 6,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.39 : 15,312.49 = 4,280.75 : x
  2. Step 2: Convert to fraction form
    10,204.39/15,312.49 = 4,280.75/x
  3. Step 3: Cross multiply
    10,204.39x = 15,312.49 × 4,280.75
  4. Step 4: Simplify right side
    10,204.39x = 65,548,935.80
  5. Step 5: Solve for x
    x = 65,548,935.80/10,204.39
  6. Step 6: Final answer
    x = 6,423.60

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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.