Home / 14,145.59-19,518.75-8,176.11

Finding the Fourth Proportional to 14,145.59, 19,518.75 and 8,176.11

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Solution

The fourth proportional to 14,145.59, 19,518.75 and 8,176.11 is: 11,281.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.59 : 19,518.75 = 8,176.11 : x
  2. Step 2: Convert to fraction form
    14,145.59/19,518.75 = 8,176.11/x
  3. Step 3: Cross multiply
    14,145.59x = 19,518.75 × 8,176.11
  4. Step 4: Simplify right side
    14,145.59x = 159,587,447.06
  5. Step 5: Solve for x
    x = 159,587,447.06/14,145.59
  6. Step 6: Final answer
    x = 11,281.78

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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.