Home / 15,117.56-20,862.14-8,403.08

Finding the Fourth Proportional to 15,117.56, 20,862.14 and 8,403.08

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Solution

The fourth proportional to 15,117.56, 20,862.14 and 8,403.08 is: 11,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.56 : 20,862.14 = 8,403.08 : x
  2. Step 2: Convert to fraction form
    15,117.56/20,862.14 = 8,403.08/x
  3. Step 3: Cross multiply
    15,117.56x = 20,862.14 × 8,403.08
  4. Step 4: Simplify right side
    15,117.56x = 175,306,231.39
  5. Step 5: Solve for x
    x = 175,306,231.39/15,117.56
  6. Step 6: Final answer
    x = 11,596.20

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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.