Home / 12,654.36-18,981.80-4,343.93

Finding the Fourth Proportional to 12,654.36, 18,981.80 and 4,343.93

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Solution

The fourth proportional to 12,654.36, 18,981.80 and 4,343.93 is: 6,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.36 : 18,981.80 = 4,343.93 : x
  2. Step 2: Convert to fraction form
    12,654.36/18,981.80 = 4,343.93/x
  3. Step 3: Cross multiply
    12,654.36x = 18,981.80 × 4,343.93
  4. Step 4: Simplify right side
    12,654.36x = 82,455,610.47
  5. Step 5: Solve for x
    x = 82,455,610.47/12,654.36
  6. Step 6: Final answer
    x = 6,515.98

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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.