Home / 12,742.38-19,113.30-6,817.50

Finding the Fourth Proportional to 12,742.38, 19,113.30 and 6,817.50

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Solution

The fourth proportional to 12,742.38, 19,113.30 and 6,817.50 is: 10,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.38 : 19,113.30 = 6,817.50 : x
  2. Step 2: Convert to fraction form
    12,742.38/19,113.30 = 6,817.50/x
  3. Step 3: Cross multiply
    12,742.38x = 19,113.30 × 6,817.50
  4. Step 4: Simplify right side
    12,742.38x = 130,304,922.75
  5. Step 5: Solve for x
    x = 130,304,922.75/12,742.38
  6. Step 6: Final answer
    x = 10,226.11

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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.