Home / 10,659.20-14,709.51-5,879.60

Finding the Fourth Proportional to 10,659.20, 14,709.51 and 5,879.60

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Solution

The fourth proportional to 10,659.20, 14,709.51 and 5,879.60 is: 8,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,659.20 : 14,709.51 = 5,879.60 : x
  2. Step 2: Convert to fraction form
    10,659.20/14,709.51 = 5,879.60/x
  3. Step 3: Cross multiply
    10,659.20x = 14,709.51 × 5,879.60
  4. Step 4: Simplify right side
    10,659.20x = 86,486,092.10
  5. Step 5: Solve for x
    x = 86,486,092.10/10,659.20
  6. Step 6: Final answer
    x = 8,113.75

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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.