Home / 15,643.87-23,472.28-6,290.51

Finding the Fourth Proportional to 15,643.87, 23,472.28 and 6,290.51

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Solution

The fourth proportional to 15,643.87, 23,472.28 and 6,290.51 is: 9,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.87 : 23,472.28 = 6,290.51 : x
  2. Step 2: Convert to fraction form
    15,643.87/23,472.28 = 6,290.51/x
  3. Step 3: Cross multiply
    15,643.87x = 23,472.28 × 6,290.51
  4. Step 4: Simplify right side
    15,643.87x = 147,652,634.60
  5. Step 5: Solve for x
    x = 147,652,634.60/15,643.87
  6. Step 6: Final answer
    x = 9,438.37

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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.