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Finding the Fourth Proportional to 17,281.80, 25,926.30 and 9,880.20

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Solution

The fourth proportional to 17,281.80, 25,926.30 and 9,880.20 is: 14,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,281.80 : 25,926.30 = 9,880.20 : x
  2. Step 2: Convert to fraction form
    17,281.80/25,926.30 = 9,880.20/x
  3. Step 3: Cross multiply
    17,281.80x = 25,926.30 × 9,880.20
  4. Step 4: Simplify right side
    17,281.80x = 256,157,029.26
  5. Step 5: Solve for x
    x = 256,157,029.26/17,281.80
  6. Step 6: Final answer
    x = 14,822.36

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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.