Home / 6,854.48-9,459.64-5,172.88

Finding the Fourth Proportional to 6,854.48, 9,459.64 and 5,172.88

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Solution

The fourth proportional to 6,854.48, 9,459.64 and 5,172.88 is: 7,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,854.48 : 9,459.64 = 5,172.88 : x
  2. Step 2: Convert to fraction form
    6,854.48/9,459.64 = 5,172.88/x
  3. Step 3: Cross multiply
    6,854.48x = 9,459.64 × 5,172.88
  4. Step 4: Simplify right side
    6,854.48x = 48,933,582.56
  5. Step 5: Solve for x
    x = 48,933,582.56/6,854.48
  6. Step 6: Final answer
    x = 7,138.92

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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.