Home / 19,479.96-26,884.80-12,771.18

Finding the Fourth Proportional to 19,479.96, 26,884.80 and 12,771.18

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Solution

The fourth proportional to 19,479.96, 26,884.80 and 12,771.18 is: 17,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.96 : 26,884.80 = 12,771.18 : x
  2. Step 2: Convert to fraction form
    19,479.96/26,884.80 = 12,771.18/x
  3. Step 3: Cross multiply
    19,479.96x = 26,884.80 × 12,771.18
  4. Step 4: Simplify right side
    19,479.96x = 343,350,620.06
  5. Step 5: Solve for x
    x = 343,350,620.06/19,479.96
  6. Step 6: Final answer
    x = 17,625.84

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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.