Home / 15,025.23-20,734.11-8,219.10

Finding the Fourth Proportional to 15,025.23, 20,734.11 and 8,219.10

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Solution

The fourth proportional to 15,025.23, 20,734.11 and 8,219.10 is: 11,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.23 : 20,734.11 = 8,219.10 : x
  2. Step 2: Convert to fraction form
    15,025.23/20,734.11 = 8,219.10/x
  3. Step 3: Cross multiply
    15,025.23x = 20,734.11 × 8,219.10
  4. Step 4: Simplify right side
    15,025.23x = 170,415,801.25
  5. Step 5: Solve for x
    x = 170,415,801.25/15,025.23
  6. Step 6: Final answer
    x = 11,341.98

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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.