Home / 12,235.66-16,886.56-6,858.61

Finding the Fourth Proportional to 12,235.66, 16,886.56 and 6,858.61

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Solution

The fourth proportional to 12,235.66, 16,886.56 and 6,858.61 is: 9,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.66 : 16,886.56 = 6,858.61 : x
  2. Step 2: Convert to fraction form
    12,235.66/16,886.56 = 6,858.61/x
  3. Step 3: Cross multiply
    12,235.66x = 16,886.56 × 6,858.61
  4. Step 4: Simplify right side
    12,235.66x = 115,818,272.56
  5. Step 5: Solve for x
    x = 115,818,272.56/12,235.66
  6. Step 6: Final answer
    x = 9,465.64

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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.