Home / 11,420.66-15,760.62-6,705.02

Finding the Fourth Proportional to 11,420.66, 15,760.62 and 6,705.02

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Solution

The fourth proportional to 11,420.66, 15,760.62 and 6,705.02 is: 9,252.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.66 : 15,760.62 = 6,705.02 : x
  2. Step 2: Convert to fraction form
    11,420.66/15,760.62 = 6,705.02/x
  3. Step 3: Cross multiply
    11,420.66x = 15,760.62 × 6,705.02
  4. Step 4: Simplify right side
    11,420.66x = 105,675,272.31
  5. Step 5: Solve for x
    x = 105,675,272.31/11,420.66
  6. Step 6: Final answer
    x = 9,252.99

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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.