Home / 14,631.18-20,189.57-8,257.20

Finding the Fourth Proportional to 14,631.18, 20,189.57 and 8,257.20

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Solution

The fourth proportional to 14,631.18, 20,189.57 and 8,257.20 is: 11,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.18 : 20,189.57 = 8,257.20 : x
  2. Step 2: Convert to fraction form
    14,631.18/20,189.57 = 8,257.20/x
  3. Step 3: Cross multiply
    14,631.18x = 20,189.57 × 8,257.20
  4. Step 4: Simplify right side
    14,631.18x = 166,709,276.12
  5. Step 5: Solve for x
    x = 166,709,276.12/14,631.18
  6. Step 6: Final answer
    x = 11,394.11

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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.