Home / 12,299.28-16,931.96-11,734.38

Finding the Fourth Proportional to 12,299.28, 16,931.96 and 11,734.38

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Solution

The fourth proportional to 12,299.28, 16,931.96 and 11,734.38 is: 16,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.28 : 16,931.96 = 11,734.38 : x
  2. Step 2: Convert to fraction form
    12,299.28/16,931.96 = 11,734.38/x
  3. Step 3: Cross multiply
    12,299.28x = 16,931.96 × 11,734.38
  4. Step 4: Simplify right side
    12,299.28x = 198,685,994.11
  5. Step 5: Solve for x
    x = 198,685,994.11/12,299.28
  6. Step 6: Final answer
    x = 16,154.28

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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.