Home / 15,876.85-21,910.19-8,803.37

Finding the Fourth Proportional to 15,876.85, 21,910.19 and 8,803.37

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Solution

The fourth proportional to 15,876.85, 21,910.19 and 8,803.37 is: 12,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.85 : 21,910.19 = 8,803.37 : x
  2. Step 2: Convert to fraction form
    15,876.85/21,910.19 = 8,803.37/x
  3. Step 3: Cross multiply
    15,876.85x = 21,910.19 × 8,803.37
  4. Step 4: Simplify right side
    15,876.85x = 192,883,465.32
  5. Step 5: Solve for x
    x = 192,883,465.32/15,876.85
  6. Step 6: Final answer
    x = 12,148.72

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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.