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Finding the Fourth Proportional to 8,777.68, 13,152.70 and 3,223.40

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Solution

The fourth proportional to 8,777.68, 13,152.70 and 3,223.40 is: 4,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.68 : 13,152.70 = 3,223.40 : x
  2. Step 2: Convert to fraction form
    8,777.68/13,152.70 = 3,223.40/x
  3. Step 3: Cross multiply
    8,777.68x = 13,152.70 × 3,223.40
  4. Step 4: Simplify right side
    8,777.68x = 42,396,333.31
  5. Step 5: Solve for x
    x = 42,396,333.31/8,777.68
  6. Step 6: Final answer
    x = 4,830.01

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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.