Home / 12,691.40-19,026.14-6,108.52

Finding the Fourth Proportional to 12,691.40, 19,026.14 and 6,108.52

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Solution

The fourth proportional to 12,691.40, 19,026.14 and 6,108.52 is: 9,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.40 : 19,026.14 = 6,108.52 : x
  2. Step 2: Convert to fraction form
    12,691.40/19,026.14 = 6,108.52/x
  3. Step 3: Cross multiply
    12,691.40x = 19,026.14 × 6,108.52
  4. Step 4: Simplify right side
    12,691.40x = 116,221,556.71
  5. Step 5: Solve for x
    x = 116,221,556.71/12,691.40
  6. Step 6: Final answer
    x = 9,157.50

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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.