Home / 12,158.93-16,779.89-6,853.97

Finding the Fourth Proportional to 12,158.93, 16,779.89 and 6,853.97

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Solution

The fourth proportional to 12,158.93, 16,779.89 and 6,853.97 is: 9,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.93 : 16,779.89 = 6,853.97 : x
  2. Step 2: Convert to fraction form
    12,158.93/16,779.89 = 6,853.97/x
  3. Step 3: Cross multiply
    12,158.93x = 16,779.89 × 6,853.97
  4. Step 4: Simplify right side
    12,158.93x = 115,008,862.66
  5. Step 5: Solve for x
    x = 115,008,862.66/12,158.93
  6. Step 6: Final answer
    x = 9,458.80

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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.