Home / 8,601.39-12,880.22-5,670.81

Finding the Fourth Proportional to 8,601.39, 12,880.22 and 5,670.81

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Solution

The fourth proportional to 8,601.39, 12,880.22 and 5,670.81 is: 8,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.39 : 12,880.22 = 5,670.81 : x
  2. Step 2: Convert to fraction form
    8,601.39/12,880.22 = 5,670.81/x
  3. Step 3: Cross multiply
    8,601.39x = 12,880.22 × 5,670.81
  4. Step 4: Simplify right side
    8,601.39x = 73,041,252.02
  5. Step 5: Solve for x
    x = 73,041,252.02/8,601.39
  6. Step 6: Final answer
    x = 8,491.80

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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.