Home / 8,685.39-13,031.73-3,752.49

Finding the Fourth Proportional to 8,685.39, 13,031.73 and 3,752.49

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Solution

The fourth proportional to 8,685.39, 13,031.73 and 3,752.49 is: 5,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.39 : 13,031.73 = 3,752.49 : x
  2. Step 2: Convert to fraction form
    8,685.39/13,031.73 = 3,752.49/x
  3. Step 3: Cross multiply
    8,685.39x = 13,031.73 × 3,752.49
  4. Step 4: Simplify right side
    8,685.39x = 48,901,436.51
  5. Step 5: Solve for x
    x = 48,901,436.51/8,685.39
  6. Step 6: Final answer
    x = 5,630.31

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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.