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Finding the Fourth Proportional to 12,750.50, 17,590.76 and 9,401.26

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Solution

The fourth proportional to 12,750.50, 17,590.76 and 9,401.26 is: 12,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.50 : 17,590.76 = 9,401.26 : x
  2. Step 2: Convert to fraction form
    12,750.50/17,590.76 = 9,401.26/x
  3. Step 3: Cross multiply
    12,750.50x = 17,590.76 × 9,401.26
  4. Step 4: Simplify right side
    12,750.50x = 165,375,308.36
  5. Step 5: Solve for x
    x = 165,375,308.36/12,750.50
  6. Step 6: Final answer
    x = 12,970.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.