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Finding the Fourth Proportional to 10,164.80, 15,214.80 and 7,248.80

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Solution

The fourth proportional to 10,164.80, 15,214.80 and 7,248.80 is: 10,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,164.80 : 15,214.80 = 7,248.80 : x
  2. Step 2: Convert to fraction form
    10,164.80/15,214.80 = 7,248.80/x
  3. Step 3: Cross multiply
    10,164.80x = 15,214.80 × 7,248.80
  4. Step 4: Simplify right side
    10,164.80x = 110,289,042.24
  5. Step 5: Solve for x
    x = 110,289,042.24/10,164.80
  6. Step 6: Final answer
    x = 10,850.09

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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.