Home / 11,554.86-15,947.40-6,840.66

Finding the Fourth Proportional to 11,554.86, 15,947.40 and 6,840.66

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Solution

The fourth proportional to 11,554.86, 15,947.40 and 6,840.66 is: 9,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,554.86 : 15,947.40 = 6,840.66 : x
  2. Step 2: Convert to fraction form
    11,554.86/15,947.40 = 6,840.66/x
  3. Step 3: Cross multiply
    11,554.86x = 15,947.40 × 6,840.66
  4. Step 4: Simplify right side
    11,554.86x = 109,090,741.28
  5. Step 5: Solve for x
    x = 109,090,741.28/11,554.86
  6. Step 6: Final answer
    x = 9,441.11

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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.