Home / 15,002.96-20,703.29-8,628.54

Finding the Fourth Proportional to 15,002.96, 20,703.29 and 8,628.54

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Solution

The fourth proportional to 15,002.96, 20,703.29 and 8,628.54 is: 11,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.96 : 20,703.29 = 8,628.54 : x
  2. Step 2: Convert to fraction form
    15,002.96/20,703.29 = 8,628.54/x
  3. Step 3: Cross multiply
    15,002.96x = 20,703.29 × 8,628.54
  4. Step 4: Simplify right side
    15,002.96x = 178,639,187.47
  5. Step 5: Solve for x
    x = 178,639,187.47/15,002.96
  6. Step 6: Final answer
    x = 11,906.93

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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.