Home / 12,513.94-18,774.65-7,247.72

Finding the Fourth Proportional to 12,513.94, 18,774.65 and 7,247.72

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Solution

The fourth proportional to 12,513.94, 18,774.65 and 7,247.72 is: 10,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.94 : 18,774.65 = 7,247.72 : x
  2. Step 2: Convert to fraction form
    12,513.94/18,774.65 = 7,247.72/x
  3. Step 3: Cross multiply
    12,513.94x = 18,774.65 × 7,247.72
  4. Step 4: Simplify right side
    12,513.94x = 136,073,471.35
  5. Step 5: Solve for x
    x = 136,073,471.35/12,513.94
  6. Step 6: Final answer
    x = 10,873.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.