Home / 14,291.28-21,432.60-6,891.12

Finding the Fourth Proportional to 14,291.28, 21,432.60 and 6,891.12

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Solution

The fourth proportional to 14,291.28, 21,432.60 and 6,891.12 is: 10,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.28 : 21,432.60 = 6,891.12 : x
  2. Step 2: Convert to fraction form
    14,291.28/21,432.60 = 6,891.12/x
  3. Step 3: Cross multiply
    14,291.28x = 21,432.60 × 6,891.12
  4. Step 4: Simplify right side
    14,291.28x = 147,694,618.51
  5. Step 5: Solve for x
    x = 147,694,618.51/14,291.28
  6. Step 6: Final answer
    x = 10,334.60

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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.