Home / 11,862.25-16,370.18-7,677.79

Finding the Fourth Proportional to 11,862.25, 16,370.18 and 7,677.79

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Solution

The fourth proportional to 11,862.25, 16,370.18 and 7,677.79 is: 10,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.25 : 16,370.18 = 7,677.79 : x
  2. Step 2: Convert to fraction form
    11,862.25/16,370.18 = 7,677.79/x
  3. Step 3: Cross multiply
    11,862.25x = 16,370.18 × 7,677.79
  4. Step 4: Simplify right side
    11,862.25x = 125,686,804.30
  5. Step 5: Solve for x
    x = 125,686,804.30/11,862.25
  6. Step 6: Final answer
    x = 10,595.53

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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.