Home / 12,977.28-19,478.04-5,961.08

Finding the Fourth Proportional to 12,977.28, 19,478.04 and 5,961.08

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Solution

The fourth proportional to 12,977.28, 19,478.04 and 5,961.08 is: 8,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.28 : 19,478.04 = 5,961.08 : x
  2. Step 2: Convert to fraction form
    12,977.28/19,478.04 = 5,961.08/x
  3. Step 3: Cross multiply
    12,977.28x = 19,478.04 × 5,961.08
  4. Step 4: Simplify right side
    12,977.28x = 116,110,154.68
  5. Step 5: Solve for x
    x = 116,110,154.68/12,977.28
  6. Step 6: Final answer
    x = 8,947.19

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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.