Home / 15,194.24-20,956.08-9,890.72

Finding the Fourth Proportional to 15,194.24, 20,956.08 and 9,890.72

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Solution

The fourth proportional to 15,194.24, 20,956.08 and 9,890.72 is: 13,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.24 : 20,956.08 = 9,890.72 : x
  2. Step 2: Convert to fraction form
    15,194.24/20,956.08 = 9,890.72/x
  3. Step 3: Cross multiply
    15,194.24x = 20,956.08 × 9,890.72
  4. Step 4: Simplify right side
    15,194.24x = 207,270,719.58
  5. Step 5: Solve for x
    x = 207,270,719.58/15,194.24
  6. Step 6: Final answer
    x = 13,641.40

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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.