Home / 8,418.34-11,612.55-5,269.06

Finding the Fourth Proportional to 8,418.34, 11,612.55 and 5,269.06

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Solution

The fourth proportional to 8,418.34, 11,612.55 and 5,269.06 is: 7,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.34 : 11,612.55 = 5,269.06 : x
  2. Step 2: Convert to fraction form
    8,418.34/11,612.55 = 5,269.06/x
  3. Step 3: Cross multiply
    8,418.34x = 11,612.55 × 5,269.06
  4. Step 4: Simplify right side
    8,418.34x = 61,187,193.67
  5. Step 5: Solve for x
    x = 61,187,193.67/8,418.34
  6. Step 6: Final answer
    x = 7,268.32

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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.