Home / 19,374-26,738.28-10,993.20

Finding the Fourth Proportional to 19,374, 26,738.28 and 10,993.20

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Solution

The fourth proportional to 19,374, 26,738.28 and 10,993.20 is: 15,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374 : 26,738.28 = 10,993.20 : x
  2. Step 2: Convert to fraction form
    19,374/26,738.28 = 10,993.20/x
  3. Step 3: Cross multiply
    19,374x = 26,738.28 × 10,993.20
  4. Step 4: Simplify right side
    19,374x = 293,939,259.70
  5. Step 5: Solve for x
    x = 293,939,259.70/19,374
  6. Step 6: Final answer
    x = 15,171.84

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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.