Home / 10,204.19-15,312.20-4,280.55

Finding the Fourth Proportional to 10,204.19, 15,312.20 and 4,280.55

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Solution

The fourth proportional to 10,204.19, 15,312.20 and 4,280.55 is: 6,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.19 : 15,312.20 = 4,280.55 : x
  2. Step 2: Convert to fraction form
    10,204.19/15,312.20 = 4,280.55/x
  3. Step 3: Cross multiply
    10,204.19x = 15,312.20 × 4,280.55
  4. Step 4: Simplify right side
    10,204.19x = 65,544,709.15
  5. Step 5: Solve for x
    x = 65,544,709.15/10,204.19
  6. Step 6: Final answer
    x = 6,423.31

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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.