Home / 19,371.34-26,731.38-10,987.84

Finding the Fourth Proportional to 19,371.34, 26,731.38 and 10,987.84

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Solution

The fourth proportional to 19,371.34, 26,731.38 and 10,987.84 is: 15,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.34 : 26,731.38 = 10,987.84 : x
  2. Step 2: Convert to fraction form
    19,371.34/26,731.38 = 10,987.84/x
  3. Step 3: Cross multiply
    19,371.34x = 26,731.38 × 10,987.84
  4. Step 4: Simplify right side
    19,371.34x = 293,720,126.42
  5. Step 5: Solve for x
    x = 293,720,126.42/19,371.34
  6. Step 6: Final answer
    x = 15,162.61

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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.