Home / 18,381.90-25,367.28-13,774.52

Finding the Fourth Proportional to 18,381.90, 25,367.28 and 13,774.52

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Solution

The fourth proportional to 18,381.90, 25,367.28 and 13,774.52 is: 19,009.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.90 : 25,367.28 = 13,774.52 : x
  2. Step 2: Convert to fraction form
    18,381.90/25,367.28 = 13,774.52/x
  3. Step 3: Cross multiply
    18,381.90x = 25,367.28 × 13,774.52
  4. Step 4: Simplify right side
    18,381.90x = 349,422,105.71
  5. Step 5: Solve for x
    x = 349,422,105.71/18,381.90
  6. Step 6: Final answer
    x = 19,009.03

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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.