Home / 15,141.06-20,894.49-8,426.57

Finding the Fourth Proportional to 15,141.06, 20,894.49 and 8,426.57

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Solution

The fourth proportional to 15,141.06, 20,894.49 and 8,426.57 is: 11,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.06 : 20,894.49 = 8,426.57 : x
  2. Step 2: Convert to fraction form
    15,141.06/20,894.49 = 8,426.57/x
  3. Step 3: Cross multiply
    15,141.06x = 20,894.49 × 8,426.57
  4. Step 4: Simplify right side
    15,141.06x = 176,068,882.60
  5. Step 5: Solve for x
    x = 176,068,882.60/15,141.06
  6. Step 6: Final answer
    x = 11,628.57

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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.