Home / 8,861.29-13,291.93-2,620.81

Finding the Fourth Proportional to 8,861.29, 13,291.93 and 2,620.81

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Solution

The fourth proportional to 8,861.29, 13,291.93 and 2,620.81 is: 3,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.29 : 13,291.93 = 2,620.81 : x
  2. Step 2: Convert to fraction form
    8,861.29/13,291.93 = 2,620.81/x
  3. Step 3: Cross multiply
    8,861.29x = 13,291.93 × 2,620.81
  4. Step 4: Simplify right side
    8,861.29x = 34,835,662.96
  5. Step 5: Solve for x
    x = 34,835,662.96/8,861.29
  6. Step 6: Final answer
    x = 3,931.22

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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.