Home / 17,969.20-26,953.80-8,127.70

Finding the Fourth Proportional to 17,969.20, 26,953.80 and 8,127.70

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Solution

The fourth proportional to 17,969.20, 26,953.80 and 8,127.70 is: 12,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.20 : 26,953.80 = 8,127.70 : x
  2. Step 2: Convert to fraction form
    17,969.20/26,953.80 = 8,127.70/x
  3. Step 3: Cross multiply
    17,969.20x = 26,953.80 × 8,127.70
  4. Step 4: Simplify right side
    17,969.20x = 219,072,400.26
  5. Step 5: Solve for x
    x = 219,072,400.26/17,969.20
  6. Step 6: Final answer
    x = 12,191.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.