Home / 10,345.14-14,276.34-5,629.44

Finding the Fourth Proportional to 10,345.14, 14,276.34 and 5,629.44

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Solution

The fourth proportional to 10,345.14, 14,276.34 and 5,629.44 is: 7,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.14 : 14,276.34 = 5,629.44 : x
  2. Step 2: Convert to fraction form
    10,345.14/14,276.34 = 5,629.44/x
  3. Step 3: Cross multiply
    10,345.14x = 14,276.34 × 5,629.44
  4. Step 4: Simplify right side
    10,345.14x = 80,367,799.45
  5. Step 5: Solve for x
    x = 80,367,799.45/10,345.14
  6. Step 6: Final answer
    x = 7,768.65

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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.