Home / 11,134.72-15,368.70-6,418.36

Finding the Fourth Proportional to 11,134.72, 15,368.70 and 6,418.36

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Solution

The fourth proportional to 11,134.72, 15,368.70 and 6,418.36 is: 8,858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.72 : 15,368.70 = 6,418.36 : x
  2. Step 2: Convert to fraction form
    11,134.72/15,368.70 = 6,418.36/x
  3. Step 3: Cross multiply
    11,134.72x = 15,368.70 × 6,418.36
  4. Step 4: Simplify right side
    11,134.72x = 98,641,849.33
  5. Step 5: Solve for x
    x = 98,641,849.33/11,134.72
  6. Step 6: Final answer
    x = 8,858.94

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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.