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Finding the Fourth Proportional to 8,650.64, 12,946.58 and 5,532.80

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Solution

The fourth proportional to 8,650.64, 12,946.58 and 5,532.80 is: 8,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.64 : 12,946.58 = 5,532.80 : x
  2. Step 2: Convert to fraction form
    8,650.64/12,946.58 = 5,532.80/x
  3. Step 3: Cross multiply
    8,650.64x = 12,946.58 × 5,532.80
  4. Step 4: Simplify right side
    8,650.64x = 71,630,810.16
  5. Step 5: Solve for x
    x = 71,630,810.16/8,650.64
  6. Step 6: Final answer
    x = 8,280.41

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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.