Home / 14,185.20-19,575.42-7,811.66

Finding the Fourth Proportional to 14,185.20, 19,575.42 and 7,811.66

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Solution

The fourth proportional to 14,185.20, 19,575.42 and 7,811.66 is: 10,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.20 : 19,575.42 = 7,811.66 : x
  2. Step 2: Convert to fraction form
    14,185.20/19,575.42 = 7,811.66/x
  3. Step 3: Cross multiply
    14,185.20x = 19,575.42 × 7,811.66
  4. Step 4: Simplify right side
    14,185.20x = 152,916,545.04
  5. Step 5: Solve for x
    x = 152,916,545.04/14,185.20
  6. Step 6: Final answer
    x = 10,780.00

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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.