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Finding the Fourth Proportional to 12,952.88, 19,432.07 and 4,187.13

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Solution

The fourth proportional to 12,952.88, 19,432.07 and 4,187.13 is: 6,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952.88 : 19,432.07 = 4,187.13 : x
  2. Step 2: Convert to fraction form
    12,952.88/19,432.07 = 4,187.13/x
  3. Step 3: Cross multiply
    12,952.88x = 19,432.07 × 4,187.13
  4. Step 4: Simplify right side
    12,952.88x = 81,364,525.15
  5. Step 5: Solve for x
    x = 81,364,525.15/12,952.88
  6. Step 6: Final answer
    x = 6,281.58

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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.