Home / 9,436.86-13,039.79-6,779.66

Finding the Fourth Proportional to 9,436.86, 13,039.79 and 6,779.66

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Solution

The fourth proportional to 9,436.86, 13,039.79 and 6,779.66 is: 9,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,436.86 : 13,039.79 = 6,779.66 : x
  2. Step 2: Convert to fraction form
    9,436.86/13,039.79 = 6,779.66/x
  3. Step 3: Cross multiply
    9,436.86x = 13,039.79 × 6,779.66
  4. Step 4: Simplify right side
    9,436.86x = 88,405,243.57
  5. Step 5: Solve for x
    x = 88,405,243.57/9,436.86
  6. Step 6: Final answer
    x = 9,368.08

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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.