Home / 10,220.48-15,293.71-8,449.01

Finding the Fourth Proportional to 10,220.48, 15,293.71 and 8,449.01

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Solution

The fourth proportional to 10,220.48, 15,293.71 and 8,449.01 is: 12,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.48 : 15,293.71 = 8,449.01 : x
  2. Step 2: Convert to fraction form
    10,220.48/15,293.71 = 8,449.01/x
  3. Step 3: Cross multiply
    10,220.48x = 15,293.71 × 8,449.01
  4. Step 4: Simplify right side
    10,220.48x = 129,216,700.17
  5. Step 5: Solve for x
    x = 129,216,700.17/10,220.48
  6. Step 6: Final answer
    x = 12,642.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.