Home / 19,563.55-26,987.27-11,909.15

Finding the Fourth Proportional to 19,563.55, 26,987.27 and 11,909.15

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Solution

The fourth proportional to 19,563.55, 26,987.27 and 11,909.15 is: 16,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.55 : 26,987.27 = 11,909.15 : x
  2. Step 2: Convert to fraction form
    19,563.55/26,987.27 = 11,909.15/x
  3. Step 3: Cross multiply
    19,563.55x = 26,987.27 × 11,909.15
  4. Step 4: Simplify right side
    19,563.55x = 321,395,446.52
  5. Step 5: Solve for x
    x = 321,395,446.52/19,563.55
  6. Step 6: Final answer
    x = 16,428.28

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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.