Home / 15,620.12-23,425.36-8,220.56

Finding the Fourth Proportional to 15,620.12, 23,425.36 and 8,220.56

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Solution

The fourth proportional to 15,620.12, 23,425.36 and 8,220.56 is: 12,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.12 : 23,425.36 = 8,220.56 : x
  2. Step 2: Convert to fraction form
    15,620.12/23,425.36 = 8,220.56/x
  3. Step 3: Cross multiply
    15,620.12x = 23,425.36 × 8,220.56
  4. Step 4: Simplify right side
    15,620.12x = 192,569,577.40
  5. Step 5: Solve for x
    x = 192,569,577.40/15,620.12
  6. Step 6: Final answer
    x = 12,328.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.