Home / 19,867.90-27,423.22-11,374.78

Finding the Fourth Proportional to 19,867.90, 27,423.22 and 11,374.78

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Solution

The fourth proportional to 19,867.90, 27,423.22 and 11,374.78 is: 15,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.90 : 27,423.22 = 11,374.78 : x
  2. Step 2: Convert to fraction form
    19,867.90/27,423.22 = 11,374.78/x
  3. Step 3: Cross multiply
    19,867.90x = 27,423.22 × 11,374.78
  4. Step 4: Simplify right side
    19,867.90x = 311,933,094.39
  5. Step 5: Solve for x
    x = 311,933,094.39/19,867.90
  6. Step 6: Final answer
    x = 15,700.36

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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.