Home / 15,187.41-20,959.14-8,813.52

Finding the Fourth Proportional to 15,187.41, 20,959.14 and 8,813.52

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Solution

The fourth proportional to 15,187.41, 20,959.14 and 8,813.52 is: 12,162.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.41 : 20,959.14 = 8,813.52 : x
  2. Step 2: Convert to fraction form
    15,187.41/20,959.14 = 8,813.52/x
  3. Step 3: Cross multiply
    15,187.41x = 20,959.14 × 8,813.52
  4. Step 4: Simplify right side
    15,187.41x = 184,723,799.57
  5. Step 5: Solve for x
    x = 184,723,799.57/15,187.41
  6. Step 6: Final answer
    x = 12,162.96

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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.