Home / 15,348.24-21,180.36-8,633.87

Finding the Fourth Proportional to 15,348.24, 21,180.36 and 8,633.87

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Solution

The fourth proportional to 15,348.24, 21,180.36 and 8,633.87 is: 11,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.24 : 21,180.36 = 8,633.87 : x
  2. Step 2: Convert to fraction form
    15,348.24/21,180.36 = 8,633.87/x
  3. Step 3: Cross multiply
    15,348.24x = 21,180.36 × 8,633.87
  4. Step 4: Simplify right side
    15,348.24x = 182,868,368.89
  5. Step 5: Solve for x
    x = 182,868,368.89/15,348.24
  6. Step 6: Final answer
    x = 11,914.61

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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.