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Finding the Fourth Proportional to 12,498.80, 18,750.02 and 4,605.09

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Solution

The fourth proportional to 12,498.80, 18,750.02 and 4,605.09 is: 6,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.80 : 18,750.02 = 4,605.09 : x
  2. Step 2: Convert to fraction form
    12,498.80/18,750.02 = 4,605.09/x
  3. Step 3: Cross multiply
    12,498.80x = 18,750.02 × 4,605.09
  4. Step 4: Simplify right side
    12,498.80x = 86,345,506.58
  5. Step 5: Solve for x
    x = 86,345,506.58/12,498.80
  6. Step 6: Final answer
    x = 6,908.31

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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.