Home / 8,983.49-12,396.48-5,155.30

Finding the Fourth Proportional to 8,983.49, 12,396.48 and 5,155.30

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Solution

The fourth proportional to 8,983.49, 12,396.48 and 5,155.30 is: 7,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.49 : 12,396.48 = 5,155.30 : x
  2. Step 2: Convert to fraction form
    8,983.49/12,396.48 = 5,155.30/x
  3. Step 3: Cross multiply
    8,983.49x = 12,396.48 × 5,155.30
  4. Step 4: Simplify right side
    8,983.49x = 63,907,511.36
  5. Step 5: Solve for x
    x = 63,907,511.36/8,983.49
  6. Step 6: Final answer
    x = 7,113.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.