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Finding the Fourth Proportional to 8,054.40, 11,126.40 and 6,215.04

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Solution

The fourth proportional to 8,054.40, 11,126.40 and 6,215.04 is: 8,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,054.40 : 11,126.40 = 6,215.04 : x
  2. Step 2: Convert to fraction form
    8,054.40/11,126.40 = 6,215.04/x
  3. Step 3: Cross multiply
    8,054.40x = 11,126.40 × 6,215.04
  4. Step 4: Simplify right side
    8,054.40x = 69,151,021.06
  5. Step 5: Solve for x
    x = 69,151,021.06/8,054.40
  6. Step 6: Final answer
    x = 8,585.50

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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.