Home / 19,412.43-26,788.80-11,455.38

Finding the Fourth Proportional to 19,412.43, 26,788.80 and 11,455.38

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Solution

The fourth proportional to 19,412.43, 26,788.80 and 11,455.38 is: 15,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.43 : 26,788.80 = 11,455.38 : x
  2. Step 2: Convert to fraction form
    19,412.43/26,788.80 = 11,455.38/x
  3. Step 3: Cross multiply
    19,412.43x = 26,788.80 × 11,455.38
  4. Step 4: Simplify right side
    19,412.43x = 306,875,883.74
  5. Step 5: Solve for x
    x = 306,875,883.74/19,412.43
  6. Step 6: Final answer
    x = 15,808.22

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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.