Home / 19,639.40-27,098.64-11,683.64

Finding the Fourth Proportional to 19,639.40, 27,098.64 and 11,683.64

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Solution

The fourth proportional to 19,639.40, 27,098.64 and 11,683.64 is: 16,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.40 : 27,098.64 = 11,683.64 : x
  2. Step 2: Convert to fraction form
    19,639.40/27,098.64 = 11,683.64/x
  3. Step 3: Cross multiply
    19,639.40x = 27,098.64 × 11,683.64
  4. Step 4: Simplify right side
    19,639.40x = 316,610,754.25
  5. Step 5: Solve for x
    x = 316,610,754.25/19,639.40
  6. Step 6: Final answer
    x = 16,121.20

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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.