Home / 12,742.38-19,113.30-4,951.26

Finding the Fourth Proportional to 12,742.38, 19,113.30 and 4,951.26

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Solution

The fourth proportional to 12,742.38, 19,113.30 and 4,951.26 is: 7,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.38 : 19,113.30 = 4,951.26 : x
  2. Step 2: Convert to fraction form
    12,742.38/19,113.30 = 4,951.26/x
  3. Step 3: Cross multiply
    12,742.38x = 19,113.30 × 4,951.26
  4. Step 4: Simplify right side
    12,742.38x = 94,634,917.76
  5. Step 5: Solve for x
    x = 94,634,917.76/12,742.38
  6. Step 6: Final answer
    x = 7,426.79

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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.