Home / 15,399.86-23,103.25-4,870.51

Finding the Fourth Proportional to 15,399.86, 23,103.25 and 4,870.51

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Solution

The fourth proportional to 15,399.86, 23,103.25 and 4,870.51 is: 7,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,399.86 : 23,103.25 = 4,870.51 : x
  2. Step 2: Convert to fraction form
    15,399.86/23,103.25 = 4,870.51/x
  3. Step 3: Cross multiply
    15,399.86x = 23,103.25 × 4,870.51
  4. Step 4: Simplify right side
    15,399.86x = 112,524,683.88
  5. Step 5: Solve for x
    x = 112,524,683.88/15,399.86
  6. Step 6: Final answer
    x = 7,306.87

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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.