Home / 13,036.80-17,981.22-8,558.92

Finding the Fourth Proportional to 13,036.80, 17,981.22 and 8,558.92

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Solution

The fourth proportional to 13,036.80, 17,981.22 and 8,558.92 is: 11,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.80 : 17,981.22 = 8,558.92 : x
  2. Step 2: Convert to fraction form
    13,036.80/17,981.22 = 8,558.92/x
  3. Step 3: Cross multiply
    13,036.80x = 17,981.22 × 8,558.92
  4. Step 4: Simplify right side
    13,036.80x = 153,899,733.58
  5. Step 5: Solve for x
    x = 153,899,733.58/13,036.80
  6. Step 6: Final answer
    x = 11,805.02

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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.