Home / 7,642.71-11,456.73-4,860.75

Finding the Fourth Proportional to 7,642.71, 11,456.73 and 4,860.75

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Solution

The fourth proportional to 7,642.71, 11,456.73 and 4,860.75 is: 7,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.71 : 11,456.73 = 4,860.75 : x
  2. Step 2: Convert to fraction form
    7,642.71/11,456.73 = 4,860.75/x
  3. Step 3: Cross multiply
    7,642.71x = 11,456.73 × 4,860.75
  4. Step 4: Simplify right side
    7,642.71x = 55,688,300.35
  5. Step 5: Solve for x
    x = 55,688,300.35/7,642.71
  6. Step 6: Final answer
    x = 7,286.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.