Home / 18,276.20-25,216.85-10,316.90

Finding the Fourth Proportional to 18,276.20, 25,216.85 and 10,316.90

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Solution

The fourth proportional to 18,276.20, 25,216.85 and 10,316.90 is: 14,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.20 : 25,216.85 = 10,316.90 : x
  2. Step 2: Convert to fraction form
    18,276.20/25,216.85 = 10,316.90/x
  3. Step 3: Cross multiply
    18,276.20x = 25,216.85 × 10,316.90
  4. Step 4: Simplify right side
    18,276.20x = 260,159,542.10
  5. Step 5: Solve for x
    x = 260,159,542.10/18,276.20
  6. Step 6: Final answer
    x = 14,234.89

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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.