Home / 19,895.81-27,455.48-11,397.29

Finding the Fourth Proportional to 19,895.81, 27,455.48 and 11,397.29

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Solution

The fourth proportional to 19,895.81, 27,455.48 and 11,397.29 is: 15,727.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.81 : 27,455.48 = 11,397.29 : x
  2. Step 2: Convert to fraction form
    19,895.81/27,455.48 = 11,397.29/x
  3. Step 3: Cross multiply
    19,895.81x = 27,455.48 × 11,397.29
  4. Step 4: Simplify right side
    19,895.81x = 312,918,010.66
  5. Step 5: Solve for x
    x = 312,918,010.66/19,895.81
  6. Step 6: Final answer
    x = 15,727.83

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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.