Home / 12,652.72-18,990.66-6,417.04

Finding the Fourth Proportional to 12,652.72, 18,990.66 and 6,417.04

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Solution

The fourth proportional to 12,652.72, 18,990.66 and 6,417.04 is: 9,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.72 : 18,990.66 = 6,417.04 : x
  2. Step 2: Convert to fraction form
    12,652.72/18,990.66 = 6,417.04/x
  3. Step 3: Cross multiply
    12,652.72x = 18,990.66 × 6,417.04
  4. Step 4: Simplify right side
    12,652.72x = 121,863,753.31
  5. Step 5: Solve for x
    x = 121,863,753.31/12,652.72
  6. Step 6: Final answer
    x = 9,631.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.