Home / 8,880.30-13,325.81-5,136.89

Finding the Fourth Proportional to 8,880.30, 13,325.81 and 5,136.89

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Solution

The fourth proportional to 8,880.30, 13,325.81 and 5,136.89 is: 7,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.30 : 13,325.81 = 5,136.89 : x
  2. Step 2: Convert to fraction form
    8,880.30/13,325.81 = 5,136.89/x
  3. Step 3: Cross multiply
    8,880.30x = 13,325.81 × 5,136.89
  4. Step 4: Simplify right side
    8,880.30x = 68,453,127.82
  5. Step 5: Solve for x
    x = 68,453,127.82/8,880.30
  6. Step 6: Final answer
    x = 7,708.43

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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.