Home / 10,999.68-15,179.85-6,285.48

Finding the Fourth Proportional to 10,999.68, 15,179.85 and 6,285.48

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Solution

The fourth proportional to 10,999.68, 15,179.85 and 6,285.48 is: 8,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.68 : 15,179.85 = 6,285.48 : x
  2. Step 2: Convert to fraction form
    10,999.68/15,179.85 = 6,285.48/x
  3. Step 3: Cross multiply
    10,999.68x = 15,179.85 × 6,285.48
  4. Step 4: Simplify right side
    10,999.68x = 95,412,643.58
  5. Step 5: Solve for x
    x = 95,412,643.58/10,999.68
  6. Step 6: Final answer
    x = 8,674.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.