Home / 11,333.12-15,640.45-6,857.06

Finding the Fourth Proportional to 11,333.12, 15,640.45 and 6,857.06

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Solution

The fourth proportional to 11,333.12, 15,640.45 and 6,857.06 is: 9,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.12 : 15,640.45 = 6,857.06 : x
  2. Step 2: Convert to fraction form
    11,333.12/15,640.45 = 6,857.06/x
  3. Step 3: Cross multiply
    11,333.12x = 15,640.45 × 6,857.06
  4. Step 4: Simplify right side
    11,333.12x = 107,247,526.04
  5. Step 5: Solve for x
    x = 107,247,526.04/11,333.12
  6. Step 6: Final answer
    x = 9,463.19

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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.