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Finding the Fourth Proportional to 12,602.64, 18,910.48 and 5,587.49

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Solution

The fourth proportional to 12,602.64, 18,910.48 and 5,587.49 is: 8,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.64 : 18,910.48 = 5,587.49 : x
  2. Step 2: Convert to fraction form
    12,602.64/18,910.48 = 5,587.49/x
  3. Step 3: Cross multiply
    12,602.64x = 18,910.48 × 5,587.49
  4. Step 4: Simplify right side
    12,602.64x = 105,662,161.68
  5. Step 5: Solve for x
    x = 105,662,161.68/12,602.64
  6. Step 6: Final answer
    x = 8,384.13

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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.