Home / 12,553.85-18,810.78-6,630.51

Finding the Fourth Proportional to 12,553.85, 18,810.78 and 6,630.51

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Solution

The fourth proportional to 12,553.85, 18,810.78 and 6,630.51 is: 9,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.85 : 18,810.78 = 6,630.51 : x
  2. Step 2: Convert to fraction form
    12,553.85/18,810.78 = 6,630.51/x
  3. Step 3: Cross multiply
    12,553.85x = 18,810.78 × 6,630.51
  4. Step 4: Simplify right side
    12,553.85x = 124,725,064.90
  5. Step 5: Solve for x
    x = 124,725,064.90/12,553.85
  6. Step 6: Final answer
    x = 9,935.21

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1.5x scale

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.