Home / 12,959.16-19,438.83-7,112.58

Finding the Fourth Proportional to 12,959.16, 19,438.83 and 7,112.58

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Solution

The fourth proportional to 12,959.16, 19,438.83 and 7,112.58 is: 10,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.16 : 19,438.83 = 7,112.58 : x
  2. Step 2: Convert to fraction form
    12,959.16/19,438.83 = 7,112.58/x
  3. Step 3: Cross multiply
    12,959.16x = 19,438.83 × 7,112.58
  4. Step 4: Simplify right side
    12,959.16x = 138,260,233.48
  5. Step 5: Solve for x
    x = 138,260,233.48/12,959.16
  6. Step 6: Final answer
    x = 10,668.92

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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.