Home / 10,979.03-15,141.48-8,853.95

Finding the Fourth Proportional to 10,979.03, 15,141.48 and 8,853.95

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Solution

The fourth proportional to 10,979.03, 15,141.48 and 8,853.95 is: 12,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.03 : 15,141.48 = 8,853.95 : x
  2. Step 2: Convert to fraction form
    10,979.03/15,141.48 = 8,853.95/x
  3. Step 3: Cross multiply
    10,979.03x = 15,141.48 × 8,853.95
  4. Step 4: Simplify right side
    10,979.03x = 134,061,831.14
  5. Step 5: Solve for x
    x = 134,061,831.14/10,979.03
  6. Step 6: Final answer
    x = 12,210.72

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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.