Home / 10,455.42-14,428.60-5,739.60

Finding the Fourth Proportional to 10,455.42, 14,428.60 and 5,739.60

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Solution

The fourth proportional to 10,455.42, 14,428.60 and 5,739.60 is: 7,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.42 : 14,428.60 = 5,739.60 : x
  2. Step 2: Convert to fraction form
    10,455.42/14,428.60 = 5,739.60/x
  3. Step 3: Cross multiply
    10,455.42x = 14,428.60 × 5,739.60
  4. Step 4: Simplify right side
    10,455.42x = 82,814,392.56
  5. Step 5: Solve for x
    x = 82,814,392.56/10,455.42
  6. Step 6: Final answer
    x = 7,920.71

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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.