Home / 13,265.98-18,307.11-8,228.32

Finding the Fourth Proportional to 13,265.98, 18,307.11 and 8,228.32

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Solution

The fourth proportional to 13,265.98, 18,307.11 and 8,228.32 is: 11,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.98 : 18,307.11 = 8,228.32 : x
  2. Step 2: Convert to fraction form
    13,265.98/18,307.11 = 8,228.32/x
  3. Step 3: Cross multiply
    13,265.98x = 18,307.11 × 8,228.32
  4. Step 4: Simplify right side
    13,265.98x = 150,636,744.44
  5. Step 5: Solve for x
    x = 150,636,744.44/13,265.98
  6. Step 6: Final answer
    x = 11,355.12

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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.