Home / 19,218.64-26,525.98-12,143.68

Finding the Fourth Proportional to 19,218.64, 26,525.98 and 12,143.68

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Solution

The fourth proportional to 19,218.64, 26,525.98 and 12,143.68 is: 16,760.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.64 : 26,525.98 = 12,143.68 : x
  2. Step 2: Convert to fraction form
    19,218.64/26,525.98 = 12,143.68/x
  3. Step 3: Cross multiply
    19,218.64x = 26,525.98 × 12,143.68
  4. Step 4: Simplify right side
    19,218.64x = 322,123,012.81
  5. Step 5: Solve for x
    x = 322,123,012.81/19,218.64
  6. Step 6: Final answer
    x = 16,760.97

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Similar ratio
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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.