Home / 12,979.57-19,444.74-7,703.43

Finding the Fourth Proportional to 12,979.57, 19,444.74 and 7,703.43

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Solution

The fourth proportional to 12,979.57, 19,444.74 and 7,703.43 is: 11,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.57 : 19,444.74 = 7,703.43 : x
  2. Step 2: Convert to fraction form
    12,979.57/19,444.74 = 7,703.43/x
  3. Step 3: Cross multiply
    12,979.57x = 19,444.74 × 7,703.43
  4. Step 4: Simplify right side
    12,979.57x = 149,791,193.46
  5. Step 5: Solve for x
    x = 149,791,193.46/12,979.57
  6. Step 6: Final answer
    x = 11,540.54

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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.