Home / 15,042.60-20,749.69-9,663.22

Finding the Fourth Proportional to 15,042.60, 20,749.69 and 9,663.22

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Solution

The fourth proportional to 15,042.60, 20,749.69 and 9,663.22 is: 13,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.60 : 20,749.69 = 9,663.22 : x
  2. Step 2: Convert to fraction form
    15,042.60/20,749.69 = 9,663.22/x
  3. Step 3: Cross multiply
    15,042.60x = 20,749.69 × 9,663.22
  4. Step 4: Simplify right side
    15,042.60x = 200,508,819.40
  5. Step 5: Solve for x
    x = 200,508,819.40/15,042.60
  6. Step 6: Final answer
    x = 13,329.40

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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.