Home / 18,774.90-25,909.28-10,161.06

Finding the Fourth Proportional to 18,774.90, 25,909.28 and 10,161.06

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Solution

The fourth proportional to 18,774.90, 25,909.28 and 10,161.06 is: 14,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.90 : 25,909.28 = 10,161.06 : x
  2. Step 2: Convert to fraction form
    18,774.90/25,909.28 = 10,161.06/x
  3. Step 3: Cross multiply
    18,774.90x = 25,909.28 × 10,161.06
  4. Step 4: Simplify right side
    18,774.90x = 263,265,748.64
  5. Step 5: Solve for x
    x = 263,265,748.64/18,774.90
  6. Step 6: Final answer
    x = 14,022.22

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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.