Home / 7,881.23-11,820.79-2,335.16

Finding the Fourth Proportional to 7,881.23, 11,820.79 and 2,335.16

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Solution

The fourth proportional to 7,881.23, 11,820.79 and 2,335.16 is: 3,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.23 : 11,820.79 = 2,335.16 : x
  2. Step 2: Convert to fraction form
    7,881.23/11,820.79 = 2,335.16/x
  3. Step 3: Cross multiply
    7,881.23x = 11,820.79 × 2,335.16
  4. Step 4: Simplify right side
    7,881.23x = 27,603,455.31
  5. Step 5: Solve for x
    x = 27,603,455.31/7,881.23
  6. Step 6: Final answer
    x = 3,502.43

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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.