Home / 10,993.73-15,178.23-8,471.05

Finding the Fourth Proportional to 10,993.73, 15,178.23 and 8,471.05

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Solution

The fourth proportional to 10,993.73, 15,178.23 and 8,471.05 is: 11,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.73 : 15,178.23 = 8,471.05 : x
  2. Step 2: Convert to fraction form
    10,993.73/15,178.23 = 8,471.05/x
  3. Step 3: Cross multiply
    10,993.73x = 15,178.23 × 8,471.05
  4. Step 4: Simplify right side
    10,993.73x = 128,575,507.30
  5. Step 5: Solve for x
    x = 128,575,507.30/10,993.73
  6. Step 6: Final answer
    x = 11,695.35

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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.