Home / 19,155.36-26,447.42-11,988.18

Finding the Fourth Proportional to 19,155.36, 26,447.42 and 11,988.18

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Solution

The fourth proportional to 19,155.36, 26,447.42 and 11,988.18 is: 16,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.36 : 26,447.42 = 11,988.18 : x
  2. Step 2: Convert to fraction form
    19,155.36/26,447.42 = 11,988.18/x
  3. Step 3: Cross multiply
    19,155.36x = 26,447.42 × 11,988.18
  4. Step 4: Simplify right side
    19,155.36x = 317,056,239.32
  5. Step 5: Solve for x
    x = 317,056,239.32/19,155.36
  6. Step 6: Final answer
    x = 16,551.83

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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.