Home / 15,103.47-20,841.26-8,819.49

Finding the Fourth Proportional to 15,103.47, 20,841.26 and 8,819.49

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Solution

The fourth proportional to 15,103.47, 20,841.26 and 8,819.49 is: 12,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.47 : 20,841.26 = 8,819.49 : x
  2. Step 2: Convert to fraction form
    15,103.47/20,841.26 = 8,819.49/x
  3. Step 3: Cross multiply
    15,103.47x = 20,841.26 × 8,819.49
  4. Step 4: Simplify right side
    15,103.47x = 183,809,240.06
  5. Step 5: Solve for x
    x = 183,809,240.06/15,103.47
  6. Step 6: Final answer
    x = 12,170.00

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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.