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Finding the Fourth Proportional to 8,815.17, 13,205.11 and 5,303.23

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Solution

The fourth proportional to 8,815.17, 13,205.11 and 5,303.23 is: 7,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.17 : 13,205.11 = 5,303.23 : x
  2. Step 2: Convert to fraction form
    8,815.17/13,205.11 = 5,303.23/x
  3. Step 3: Cross multiply
    8,815.17x = 13,205.11 × 5,303.23
  4. Step 4: Simplify right side
    8,815.17x = 70,029,735.51
  5. Step 5: Solve for x
    x = 70,029,735.51/8,815.17
  6. Step 6: Final answer
    x = 7,944.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.