Home / 10,346.28-14,278.86-6,369.72

Finding the Fourth Proportional to 10,346.28, 14,278.86 and 6,369.72

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Solution

The fourth proportional to 10,346.28, 14,278.86 and 6,369.72 is: 8,790.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346.28 : 14,278.86 = 6,369.72 : x
  2. Step 2: Convert to fraction form
    10,346.28/14,278.86 = 6,369.72/x
  3. Step 3: Cross multiply
    10,346.28x = 14,278.86 × 6,369.72
  4. Step 4: Simplify right side
    10,346.28x = 90,952,340.12
  5. Step 5: Solve for x
    x = 90,952,340.12/10,346.28
  6. Step 6: Final answer
    x = 8,790.83

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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.