Home / 14,390.49-19,854.31-8,101.65

Finding the Fourth Proportional to 14,390.49, 19,854.31 and 8,101.65

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Solution

The fourth proportional to 14,390.49, 19,854.31 and 8,101.65 is: 11,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.49 : 19,854.31 = 8,101.65 : x
  2. Step 2: Convert to fraction form
    14,390.49/19,854.31 = 8,101.65/x
  3. Step 3: Cross multiply
    14,390.49x = 19,854.31 × 8,101.65
  4. Step 4: Simplify right side
    14,390.49x = 160,852,670.61
  5. Step 5: Solve for x
    x = 160,852,670.61/14,390.49
  6. Step 6: Final answer
    x = 11,177.71

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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.