Home / 10,345.44-14,276.64-5,629.68

Finding the Fourth Proportional to 10,345.44, 14,276.64 and 5,629.68

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Solution

The fourth proportional to 10,345.44, 14,276.64 and 5,629.68 is: 7,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.44 : 14,276.64 = 5,629.68 : x
  2. Step 2: Convert to fraction form
    10,345.44/14,276.64 = 5,629.68/x
  3. Step 3: Cross multiply
    10,345.44x = 14,276.64 × 5,629.68
  4. Step 4: Simplify right side
    10,345.44x = 80,372,914.68
  5. Step 5: Solve for x
    x = 80,372,914.68/10,345.44
  6. Step 6: Final answer
    x = 7,768.92

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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.