Home / 8,921.49-13,378.35-4,760.57

Finding the Fourth Proportional to 8,921.49, 13,378.35 and 4,760.57

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Solution

The fourth proportional to 8,921.49, 13,378.35 and 4,760.57 is: 7,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.49 : 13,378.35 = 4,760.57 : x
  2. Step 2: Convert to fraction form
    8,921.49/13,378.35 = 4,760.57/x
  3. Step 3: Cross multiply
    8,921.49x = 13,378.35 × 4,760.57
  4. Step 4: Simplify right side
    8,921.49x = 63,688,504.77
  5. Step 5: Solve for x
    x = 63,688,504.77/8,921.49
  6. Step 6: Final answer
    x = 7,138.77

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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.