Home / 15,625.08-21,563.28-8,910.18

Finding the Fourth Proportional to 15,625.08, 21,563.28 and 8,910.18

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Solution

The fourth proportional to 15,625.08, 21,563.28 and 8,910.18 is: 12,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.08 : 21,563.28 = 8,910.18 : x
  2. Step 2: Convert to fraction form
    15,625.08/21,563.28 = 8,910.18/x
  3. Step 3: Cross multiply
    15,625.08x = 21,563.28 × 8,910.18
  4. Step 4: Simplify right side
    15,625.08x = 192,132,706.19
  5. Step 5: Solve for x
    x = 192,132,706.19/15,625.08
  6. Step 6: Final answer
    x = 12,296.43

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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.