Home / 11,153.48-15,391.96-6,118.18

Finding the Fourth Proportional to 11,153.48, 15,391.96 and 6,118.18

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Solution

The fourth proportional to 11,153.48, 15,391.96 and 6,118.18 is: 8,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.48 : 15,391.96 = 6,118.18 : x
  2. Step 2: Convert to fraction form
    11,153.48/15,391.96 = 6,118.18/x
  3. Step 3: Cross multiply
    11,153.48x = 15,391.96 × 6,118.18
  4. Step 4: Simplify right side
    11,153.48x = 94,170,781.83
  5. Step 5: Solve for x
    x = 94,170,781.83/11,153.48
  6. Step 6: Final answer
    x = 8,443.17

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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.