Home / 10,288.80-15,426.32-4,734.63

Finding the Fourth Proportional to 10,288.80, 15,426.32 and 4,734.63

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Solution

The fourth proportional to 10,288.80, 15,426.32 and 4,734.63 is: 7,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.80 : 15,426.32 = 4,734.63 : x
  2. Step 2: Convert to fraction form
    10,288.80/15,426.32 = 4,734.63/x
  3. Step 3: Cross multiply
    10,288.80x = 15,426.32 × 4,734.63
  4. Step 4: Simplify right side
    10,288.80x = 73,037,893.79
  5. Step 5: Solve for x
    x = 73,037,893.79/10,288.80
  6. Step 6: Final answer
    x = 7,098.78

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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.