Home / 19,393.11-29,054.88-11,780.55

Finding the Fourth Proportional to 19,393.11, 29,054.88 and 11,780.55

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Solution

The fourth proportional to 19,393.11, 29,054.88 and 11,780.55 is: 17,649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,393.11 : 29,054.88 = 11,780.55 : x
  2. Step 2: Convert to fraction form
    19,393.11/29,054.88 = 11,780.55/x
  3. Step 3: Cross multiply
    19,393.11x = 29,054.88 × 11,780.55
  4. Step 4: Simplify right side
    19,393.11x = 342,282,466.58
  5. Step 5: Solve for x
    x = 342,282,466.58/19,393.11
  6. Step 6: Final answer
    x = 17,649.69

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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.