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Finding the Fourth Proportional to 10,816.32, 14,918.88 and 6,626.88

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Solution

The fourth proportional to 10,816.32, 14,918.88 and 6,626.88 is: 9,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.32 : 14,918.88 = 6,626.88 : x
  2. Step 2: Convert to fraction form
    10,816.32/14,918.88 = 6,626.88/x
  3. Step 3: Cross multiply
    10,816.32x = 14,918.88 × 6,626.88
  4. Step 4: Simplify right side
    10,816.32x = 98,865,627.49
  5. Step 5: Solve for x
    x = 98,865,627.49/10,816.32
  6. Step 6: Final answer
    x = 9,140.41

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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.