Home / 12,947.28-19,417.28-3,585.04

Finding the Fourth Proportional to 12,947.28, 19,417.28 and 3,585.04

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Solution

The fourth proportional to 12,947.28, 19,417.28 and 3,585.04 is: 5,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.28 : 19,417.28 = 3,585.04 : x
  2. Step 2: Convert to fraction form
    12,947.28/19,417.28 = 3,585.04/x
  3. Step 3: Cross multiply
    12,947.28x = 19,417.28 × 3,585.04
  4. Step 4: Simplify right side
    12,947.28x = 69,611,725.49
  5. Step 5: Solve for x
    x = 69,611,725.49/12,947.28
  6. Step 6: Final answer
    x = 5,376.55

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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.