Home / 8,758.23-13,140.73-3,215.40

Finding the Fourth Proportional to 8,758.23, 13,140.73 and 3,215.40

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Solution

The fourth proportional to 8,758.23, 13,140.73 and 3,215.40 is: 4,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.23 : 13,140.73 = 3,215.40 : x
  2. Step 2: Convert to fraction form
    8,758.23/13,140.73 = 3,215.40/x
  3. Step 3: Cross multiply
    8,758.23x = 13,140.73 × 3,215.40
  4. Step 4: Simplify right side
    8,758.23x = 42,252,657.98
  5. Step 5: Solve for x
    x = 42,252,657.98/8,758.23
  6. Step 6: Final answer
    x = 4,824.34

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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.