Home / 14,005.12-19,330.86-8,039.92

Finding the Fourth Proportional to 14,005.12, 19,330.86 and 8,039.92

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Solution

The fourth proportional to 14,005.12, 19,330.86 and 8,039.92 is: 11,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.12 : 19,330.86 = 8,039.92 : x
  2. Step 2: Convert to fraction form
    14,005.12/19,330.86 = 8,039.92/x
  3. Step 3: Cross multiply
    14,005.12x = 19,330.86 × 8,039.92
  4. Step 4: Simplify right side
    14,005.12x = 155,418,567.93
  5. Step 5: Solve for x
    x = 155,418,567.93/14,005.12
  6. Step 6: Final answer
    x = 11,097.27

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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.