Home / 15,469.04-21,349.92-9,181.76

Finding the Fourth Proportional to 15,469.04, 21,349.92 and 9,181.76

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Solution

The fourth proportional to 15,469.04, 21,349.92 and 9,181.76 is: 12,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.04 : 21,349.92 = 9,181.76 : x
  2. Step 2: Convert to fraction form
    15,469.04/21,349.92 = 9,181.76/x
  3. Step 3: Cross multiply
    15,469.04x = 21,349.92 × 9,181.76
  4. Step 4: Simplify right side
    15,469.04x = 196,029,841.46
  5. Step 5: Solve for x
    x = 196,029,841.46/15,469.04
  6. Step 6: Final answer
    x = 12,672.40

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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.