Home / 7,642.23-11,463.89-2,642.53

Finding the Fourth Proportional to 7,642.23, 11,463.89 and 2,642.53

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Solution

The fourth proportional to 7,642.23, 11,463.89 and 2,642.53 is: 3,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.23 : 11,463.89 = 2,642.53 : x
  2. Step 2: Convert to fraction form
    7,642.23/11,463.89 = 2,642.53/x
  3. Step 3: Cross multiply
    7,642.23x = 11,463.89 × 2,642.53
  4. Step 4: Simplify right side
    7,642.23x = 30,293,673.24
  5. Step 5: Solve for x
    x = 30,293,673.24/7,642.23
  6. Step 6: Final answer
    x = 3,963.98

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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.