Home / 19,863.42-27,407.64-11,368.14

Finding the Fourth Proportional to 19,863.42, 27,407.64 and 11,368.14

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Solution

The fourth proportional to 19,863.42, 27,407.64 and 11,368.14 is: 15,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.42 : 27,407.64 = 11,368.14 : x
  2. Step 2: Convert to fraction form
    19,863.42/27,407.64 = 11,368.14/x
  3. Step 3: Cross multiply
    19,863.42x = 27,407.64 × 11,368.14
  4. Step 4: Simplify right side
    19,863.42x = 311,573,888.59
  5. Step 5: Solve for x
    x = 311,573,888.59/19,863.42
  6. Step 6: Final answer
    x = 15,685.81

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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.