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Finding the Fourth Proportional to 8,998.70, 13,495.01 and 3,154.55

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Solution

The fourth proportional to 8,998.70, 13,495.01 and 3,154.55 is: 4,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.70 : 13,495.01 = 3,154.55 : x
  2. Step 2: Convert to fraction form
    8,998.70/13,495.01 = 3,154.55/x
  3. Step 3: Cross multiply
    8,998.70x = 13,495.01 × 3,154.55
  4. Step 4: Simplify right side
    8,998.70x = 42,570,600.55
  5. Step 5: Solve for x
    x = 42,570,600.55/8,998.70
  6. Step 6: Final answer
    x = 4,730.75

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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.