Home / 10,995.20-16,492.80-10,217.60

Finding the Fourth Proportional to 10,995.20, 16,492.80 and 10,217.60

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Solution

The fourth proportional to 10,995.20, 16,492.80 and 10,217.60 is: 15,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.20 : 16,492.80 = 10,217.60 : x
  2. Step 2: Convert to fraction form
    10,995.20/16,492.80 = 10,217.60/x
  3. Step 3: Cross multiply
    10,995.20x = 16,492.80 × 10,217.60
  4. Step 4: Simplify right side
    10,995.20x = 168,516,833.28
  5. Step 5: Solve for x
    x = 168,516,833.28/10,995.20
  6. Step 6: Final answer
    x = 15,326.40

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Similar ratio
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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.