Home / 12,396.76-18,551.67-8,890.72

Finding the Fourth Proportional to 12,396.76, 18,551.67 and 8,890.72

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Solution

The fourth proportional to 12,396.76, 18,551.67 and 8,890.72 is: 13,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.76 : 18,551.67 = 8,890.72 : x
  2. Step 2: Convert to fraction form
    12,396.76/18,551.67 = 8,890.72/x
  3. Step 3: Cross multiply
    12,396.76x = 18,551.67 × 8,890.72
  4. Step 4: Simplify right side
    12,396.76x = 164,937,703.50
  5. Step 5: Solve for x
    x = 164,937,703.50/12,396.76
  6. Step 6: Final answer
    x = 13,304.90

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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.