Home / 12,681.52-19,011.97-5,291.48

Finding the Fourth Proportional to 12,681.52, 19,011.97 and 5,291.48

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Solution

The fourth proportional to 12,681.52, 19,011.97 and 5,291.48 is: 7,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.52 : 19,011.97 = 5,291.48 : x
  2. Step 2: Convert to fraction form
    12,681.52/19,011.97 = 5,291.48/x
  3. Step 3: Cross multiply
    12,681.52x = 19,011.97 × 5,291.48
  4. Step 4: Simplify right side
    12,681.52x = 100,601,432.56
  5. Step 5: Solve for x
    x = 100,601,432.56/12,681.52
  6. Step 6: Final answer
    x = 7,932.92

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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.