Home / 15,782.87-23,674.37-4,689.66

Finding the Fourth Proportional to 15,782.87, 23,674.37 and 4,689.66

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Solution

The fourth proportional to 15,782.87, 23,674.37 and 4,689.66 is: 7,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.87 : 23,674.37 = 4,689.66 : x
  2. Step 2: Convert to fraction form
    15,782.87/23,674.37 = 4,689.66/x
  3. Step 3: Cross multiply
    15,782.87x = 23,674.37 × 4,689.66
  4. Step 4: Simplify right side
    15,782.87x = 111,024,722.57
  5. Step 5: Solve for x
    x = 111,024,722.57/15,782.87
  6. Step 6: Final answer
    x = 7,034.51

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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.