Home / 12,805.28-17,657.84-10,112.04

Finding the Fourth Proportional to 12,805.28, 17,657.84 and 10,112.04

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Solution

The fourth proportional to 12,805.28, 17,657.84 and 10,112.04 is: 13,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805.28 : 17,657.84 = 10,112.04 : x
  2. Step 2: Convert to fraction form
    12,805.28/17,657.84 = 10,112.04/x
  3. Step 3: Cross multiply
    12,805.28x = 17,657.84 × 10,112.04
  4. Step 4: Simplify right side
    12,805.28x = 178,556,784.39
  5. Step 5: Solve for x
    x = 178,556,784.39/12,805.28
  6. Step 6: Final answer
    x = 13,944.00

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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.