Home / 11,621.18-16,039.55-7,377.30

Finding the Fourth Proportional to 11,621.18, 16,039.55 and 7,377.30

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Solution

The fourth proportional to 11,621.18, 16,039.55 and 7,377.30 is: 10,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.18 : 16,039.55 = 7,377.30 : x
  2. Step 2: Convert to fraction form
    11,621.18/16,039.55 = 7,377.30/x
  3. Step 3: Cross multiply
    11,621.18x = 16,039.55 × 7,377.30
  4. Step 4: Simplify right side
    11,621.18x = 118,328,590.66
  5. Step 5: Solve for x
    x = 118,328,590.66/11,621.18
  6. Step 6: Final answer
    x = 10,182.15

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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.