Home / 15,655.35-21,604.38-8,581.62

Finding the Fourth Proportional to 15,655.35, 21,604.38 and 8,581.62

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Solution

The fourth proportional to 15,655.35, 21,604.38 and 8,581.62 is: 11,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.35 : 21,604.38 = 8,581.62 : x
  2. Step 2: Convert to fraction form
    15,655.35/21,604.38 = 8,581.62/x
  3. Step 3: Cross multiply
    15,655.35x = 21,604.38 × 8,581.62
  4. Step 4: Simplify right side
    15,655.35x = 185,400,428.57
  5. Step 5: Solve for x
    x = 185,400,428.57/15,655.35
  6. Step 6: Final answer
    x = 11,842.63

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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.