Home / 12,955.28-19,428.15-4,633.04

Finding the Fourth Proportional to 12,955.28, 19,428.15 and 4,633.04

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Solution

The fourth proportional to 12,955.28, 19,428.15 and 4,633.04 is: 6,947.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.28 : 19,428.15 = 4,633.04 : x
  2. Step 2: Convert to fraction form
    12,955.28/19,428.15 = 4,633.04/x
  3. Step 3: Cross multiply
    12,955.28x = 19,428.15 × 4,633.04
  4. Step 4: Simplify right side
    12,955.28x = 90,011,396.08
  5. Step 5: Solve for x
    x = 90,011,396.08/12,955.28
  6. Step 6: Final answer
    x = 6,947.85

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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.