Home / 10,378.28-14,252.41-8,886.20

Finding the Fourth Proportional to 10,378.28, 14,252.41 and 8,886.20

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Solution

The fourth proportional to 10,378.28, 14,252.41 and 8,886.20 is: 12,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.28 : 14,252.41 = 8,886.20 : x
  2. Step 2: Convert to fraction form
    10,378.28/14,252.41 = 8,886.20/x
  3. Step 3: Cross multiply
    10,378.28x = 14,252.41 × 8,886.20
  4. Step 4: Simplify right side
    10,378.28x = 126,649,765.74
  5. Step 5: Solve for x
    x = 126,649,765.74/10,378.28
  6. Step 6: Final answer
    x = 12,203.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.