Home / 15,512.24-21,407.10-8,797.70

Finding the Fourth Proportional to 15,512.24, 21,407.10 and 8,797.70

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Solution

The fourth proportional to 15,512.24, 21,407.10 and 8,797.70 is: 12,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.24 : 21,407.10 = 8,797.70 : x
  2. Step 2: Convert to fraction form
    15,512.24/21,407.10 = 8,797.70/x
  3. Step 3: Cross multiply
    15,512.24x = 21,407.10 × 8,797.70
  4. Step 4: Simplify right side
    15,512.24x = 188,333,243.67
  5. Step 5: Solve for x
    x = 188,333,243.67/15,512.24
  6. Step 6: Final answer
    x = 12,140.94

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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.