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Finding the Fourth Proportional to 8,762.60, 13,136.70 and 4,658.60

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Solution

The fourth proportional to 8,762.60, 13,136.70 and 4,658.60 is: 6,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.60 : 13,136.70 = 4,658.60 : x
  2. Step 2: Convert to fraction form
    8,762.60/13,136.70 = 4,658.60/x
  3. Step 3: Cross multiply
    8,762.60x = 13,136.70 × 4,658.60
  4. Step 4: Simplify right side
    8,762.60x = 61,198,630.62
  5. Step 5: Solve for x
    x = 61,198,630.62/8,762.60
  6. Step 6: Final answer
    x = 6,984.07

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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.