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Finding the Fourth Proportional to 8,608.02, 12,911.90 and 4,710.30

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Solution

The fourth proportional to 8,608.02, 12,911.90 and 4,710.30 is: 7,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.02 : 12,911.90 = 4,710.30 : x
  2. Step 2: Convert to fraction form
    8,608.02/12,911.90 = 4,710.30/x
  3. Step 3: Cross multiply
    8,608.02x = 12,911.90 × 4,710.30
  4. Step 4: Simplify right side
    8,608.02x = 60,818,899.02
  5. Step 5: Solve for x
    x = 60,818,899.02/8,608.02
  6. Step 6: Final answer
    x = 7,065.38

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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.