Home / 19,847.60-27,380.28-11,888.36

Finding the Fourth Proportional to 19,847.60, 27,380.28 and 11,888.36

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Solution

The fourth proportional to 19,847.60, 27,380.28 and 11,888.36 is: 16,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.60 : 27,380.28 = 11,888.36 : x
  2. Step 2: Convert to fraction form
    19,847.60/27,380.28 = 11,888.36/x
  3. Step 3: Cross multiply
    19,847.60x = 27,380.28 × 11,888.36
  4. Step 4: Simplify right side
    19,847.60x = 325,506,625.54
  5. Step 5: Solve for x
    x = 325,506,625.54/19,847.60
  6. Step 6: Final answer
    x = 16,400.30

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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.