Home / 15,118.33-20,862.61-8,403.93

Finding the Fourth Proportional to 15,118.33, 20,862.61 and 8,403.93

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Solution

The fourth proportional to 15,118.33, 20,862.61 and 8,403.93 is: 11,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118.33 : 20,862.61 = 8,403.93 : x
  2. Step 2: Convert to fraction form
    15,118.33/20,862.61 = 8,403.93/x
  3. Step 3: Cross multiply
    15,118.33x = 20,862.61 × 8,403.93
  4. Step 4: Simplify right side
    15,118.33x = 175,327,914.06
  5. Step 5: Solve for x
    x = 175,327,914.06/15,118.33
  6. Step 6: Final answer
    x = 11,597.04

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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.