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Finding the Fourth Proportional to 8,999.81, 13,498.35 and 2,426.51

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Solution

The fourth proportional to 8,999.81, 13,498.35 and 2,426.51 is: 3,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.81 : 13,498.35 = 2,426.51 : x
  2. Step 2: Convert to fraction form
    8,999.81/13,498.35 = 2,426.51/x
  3. Step 3: Cross multiply
    8,999.81x = 13,498.35 × 2,426.51
  4. Step 4: Simplify right side
    8,999.81x = 32,753,829.98
  5. Step 5: Solve for x
    x = 32,753,829.98/8,999.81
  6. Step 6: Final answer
    x = 3,639.39

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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.