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Finding the Fourth Proportional to 12,660.03, 18,970.59 and 4,864.59

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Solution

The fourth proportional to 12,660.03, 18,970.59 and 4,864.59 is: 7,289.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.03 : 18,970.59 = 4,864.59 : x
  2. Step 2: Convert to fraction form
    12,660.03/18,970.59 = 4,864.59/x
  3. Step 3: Cross multiply
    12,660.03x = 18,970.59 × 4,864.59
  4. Step 4: Simplify right side
    12,660.03x = 92,284,142.41
  5. Step 5: Solve for x
    x = 92,284,142.41/12,660.03
  6. Step 6: Final answer
    x = 7,289.41

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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.