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Finding the Fourth Proportional to 17,860.68, 26,783.22 and 7,865.19

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Solution

The fourth proportional to 17,860.68, 26,783.22 and 7,865.19 is: 11,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,860.68 : 26,783.22 = 7,865.19 : x
  2. Step 2: Convert to fraction form
    17,860.68/26,783.22 = 7,865.19/x
  3. Step 3: Cross multiply
    17,860.68x = 26,783.22 × 7,865.19
  4. Step 4: Simplify right side
    17,860.68x = 210,655,114.11
  5. Step 5: Solve for x
    x = 210,655,114.11/17,860.68
  6. Step 6: Final answer
    x = 11,794.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.