Home / 15,217.04-20,999.58-8,502.14

Finding the Fourth Proportional to 15,217.04, 20,999.58 and 8,502.14

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Solution

The fourth proportional to 15,217.04, 20,999.58 and 8,502.14 is: 11,732.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.04 : 20,999.58 = 8,502.14 : x
  2. Step 2: Convert to fraction form
    15,217.04/20,999.58 = 8,502.14/x
  3. Step 3: Cross multiply
    15,217.04x = 20,999.58 × 8,502.14
  4. Step 4: Simplify right side
    15,217.04x = 178,541,369.10
  5. Step 5: Solve for x
    x = 178,541,369.10/15,217.04
  6. Step 6: Final answer
    x = 11,732.99

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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.