Home / 15,117.44-20,862.12-8,403.04

Finding the Fourth Proportional to 15,117.44, 20,862.12 and 8,403.04

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Solution

The fourth proportional to 15,117.44, 20,862.12 and 8,403.04 is: 11,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.44 : 20,862.12 = 8,403.04 : x
  2. Step 2: Convert to fraction form
    15,117.44/20,862.12 = 8,403.04/x
  3. Step 3: Cross multiply
    15,117.44x = 20,862.12 × 8,403.04
  4. Step 4: Simplify right side
    15,117.44x = 175,305,228.84
  5. Step 5: Solve for x
    x = 175,305,228.84/15,117.44
  6. Step 6: Final answer
    x = 11,596.22

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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.