Home / 15,032.35-20,744.53-8,317.99

Finding the Fourth Proportional to 15,032.35, 20,744.53 and 8,317.99

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Solution

The fourth proportional to 15,032.35, 20,744.53 and 8,317.99 is: 11,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.35 : 20,744.53 = 8,317.99 : x
  2. Step 2: Convert to fraction form
    15,032.35/20,744.53 = 8,317.99/x
  3. Step 3: Cross multiply
    15,032.35x = 20,744.53 × 8,317.99
  4. Step 4: Simplify right side
    15,032.35x = 172,552,793.09
  5. Step 5: Solve for x
    x = 172,552,793.09/15,032.35
  6. Step 6: Final answer
    x = 11,478.76

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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.