Home / 10,962.80-16,445.40-10,617.20

Finding the Fourth Proportional to 10,962.80, 16,445.40 and 10,617.20

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Solution

The fourth proportional to 10,962.80, 16,445.40 and 10,617.20 is: 15,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.80 : 16,445.40 = 10,617.20 : x
  2. Step 2: Convert to fraction form
    10,962.80/16,445.40 = 10,617.20/x
  3. Step 3: Cross multiply
    10,962.80x = 16,445.40 × 10,617.20
  4. Step 4: Simplify right side
    10,962.80x = 174,604,100.88
  5. Step 5: Solve for x
    x = 174,604,100.88/10,962.80
  6. Step 6: Final answer
    x = 15,926.96

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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.