Home / 8,890.21-12,268.83-6,648.13

Finding the Fourth Proportional to 8,890.21, 12,268.83 and 6,648.13

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Solution

The fourth proportional to 8,890.21, 12,268.83 and 6,648.13 is: 9,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.21 : 12,268.83 = 6,648.13 : x
  2. Step 2: Convert to fraction form
    8,890.21/12,268.83 = 6,648.13/x
  3. Step 3: Cross multiply
    8,890.21x = 12,268.83 × 6,648.13
  4. Step 4: Simplify right side
    8,890.21x = 81,564,776.79
  5. Step 5: Solve for x
    x = 81,564,776.79/8,890.21
  6. Step 6: Final answer
    x = 9,174.67

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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.