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Finding the Fourth Proportional to 8,762.70, 13,152.15 and 4,383.30

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Solution

The fourth proportional to 8,762.70, 13,152.15 and 4,383.30 is: 6,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.70 : 13,152.15 = 4,383.30 : x
  2. Step 2: Convert to fraction form
    8,762.70/13,152.15 = 4,383.30/x
  3. Step 3: Cross multiply
    8,762.70x = 13,152.15 × 4,383.30
  4. Step 4: Simplify right side
    8,762.70x = 57,649,819.10
  5. Step 5: Solve for x
    x = 57,649,819.10/8,762.70
  6. Step 6: Final answer
    x = 6,579.00

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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.