Home / 12,654.86-18,982.80-4,756.55

Finding the Fourth Proportional to 12,654.86, 18,982.80 and 4,756.55

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Solution

The fourth proportional to 12,654.86, 18,982.80 and 4,756.55 is: 7,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.86 : 18,982.80 = 4,756.55 : x
  2. Step 2: Convert to fraction form
    12,654.86/18,982.80 = 4,756.55/x
  3. Step 3: Cross multiply
    12,654.86x = 18,982.80 × 4,756.55
  4. Step 4: Simplify right side
    12,654.86x = 90,292,637.34
  5. Step 5: Solve for x
    x = 90,292,637.34/12,654.86
  6. Step 6: Final answer
    x = 7,135.02

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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.