Home / 11,124.68-15,353.42-6,648.39

Finding the Fourth Proportional to 11,124.68, 15,353.42 and 6,648.39

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Solution

The fourth proportional to 11,124.68, 15,353.42 and 6,648.39 is: 9,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.68 : 15,353.42 = 6,648.39 : x
  2. Step 2: Convert to fraction form
    11,124.68/15,353.42 = 6,648.39/x
  3. Step 3: Cross multiply
    11,124.68x = 15,353.42 × 6,648.39
  4. Step 4: Simplify right side
    11,124.68x = 102,075,490.75
  5. Step 5: Solve for x
    x = 102,075,490.75/11,124.68
  6. Step 6: Final answer
    x = 9,175.59

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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.