Home / 10,353.78-14,280.69-6,373.44

Finding the Fourth Proportional to 10,353.78, 14,280.69 and 6,373.44

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Solution

The fourth proportional to 10,353.78, 14,280.69 and 6,373.44 is: 8,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.78 : 14,280.69 = 6,373.44 : x
  2. Step 2: Convert to fraction form
    10,353.78/14,280.69 = 6,373.44/x
  3. Step 3: Cross multiply
    10,353.78x = 14,280.69 × 6,373.44
  4. Step 4: Simplify right side
    10,353.78x = 91,017,120.87
  5. Step 5: Solve for x
    x = 91,017,120.87/10,353.78
  6. Step 6: Final answer
    x = 8,790.71

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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.