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Finding the Fourth Proportional to 14,011, 19,335.18 and 7,723.78

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Solution

The fourth proportional to 14,011, 19,335.18 and 7,723.78 is: 10,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011 : 19,335.18 = 7,723.78 : x
  2. Step 2: Convert to fraction form
    14,011/19,335.18 = 7,723.78/x
  3. Step 3: Cross multiply
    14,011x = 19,335.18 × 7,723.78
  4. Step 4: Simplify right side
    14,011x = 149,340,676.58
  5. Step 5: Solve for x
    x = 149,340,676.58/14,011
  6. Step 6: Final answer
    x = 10,658.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.