Home / 7,011.48-9,675.86-3,824.78

Finding the Fourth Proportional to 7,011.48, 9,675.86 and 3,824.78

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Solution

The fourth proportional to 7,011.48, 9,675.86 and 3,824.78 is: 5,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.48 : 9,675.86 = 3,824.78 : x
  2. Step 2: Convert to fraction form
    7,011.48/9,675.86 = 3,824.78/x
  3. Step 3: Cross multiply
    7,011.48x = 9,675.86 × 3,824.78
  4. Step 4: Simplify right side
    7,011.48x = 37,008,035.81
  5. Step 5: Solve for x
    x = 37,008,035.81/7,011.48
  6. Step 6: Final answer
    x = 5,278.21

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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.