Home / 10,345.48-14,276.90-5,629.96

Finding the Fourth Proportional to 10,345.48, 14,276.90 and 5,629.96

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Solution

The fourth proportional to 10,345.48, 14,276.90 and 5,629.96 is: 7,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.48 : 14,276.90 = 5,629.96 : x
  2. Step 2: Convert to fraction form
    10,345.48/14,276.90 = 5,629.96/x
  3. Step 3: Cross multiply
    10,345.48x = 14,276.90 × 5,629.96
  4. Step 4: Simplify right side
    10,345.48x = 80,378,375.92
  5. Step 5: Solve for x
    x = 80,378,375.92/10,345.48
  6. Step 6: Final answer
    x = 7,769.42

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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.