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Finding the Fourth Proportional to 10,435.02, 15,722.99 and 8,626.62

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Solution

The fourth proportional to 10,435.02, 15,722.99 and 8,626.62 is: 12,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.02 : 15,722.99 = 8,626.62 : x
  2. Step 2: Convert to fraction form
    10,435.02/15,722.99 = 8,626.62/x
  3. Step 3: Cross multiply
    10,435.02x = 15,722.99 × 8,626.62
  4. Step 4: Simplify right side
    10,435.02x = 135,636,216.86
  5. Step 5: Solve for x
    x = 135,636,216.86/10,435.02
  6. Step 6: Final answer
    x = 12,998.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.