Home / 15,073.28-20,802.39-8,786.06

Finding the Fourth Proportional to 15,073.28, 20,802.39 and 8,786.06

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Solution

The fourth proportional to 15,073.28, 20,802.39 and 8,786.06 is: 12,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.28 : 20,802.39 = 8,786.06 : x
  2. Step 2: Convert to fraction form
    15,073.28/20,802.39 = 8,786.06/x
  3. Step 3: Cross multiply
    15,073.28x = 20,802.39 × 8,786.06
  4. Step 4: Simplify right side
    15,073.28x = 182,771,046.68
  5. Step 5: Solve for x
    x = 182,771,046.68/15,073.28
  6. Step 6: Final answer
    x = 12,125.50

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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.