Home / 12,304.74-18,459.78-3,985.60

Finding the Fourth Proportional to 12,304.74, 18,459.78 and 3,985.60

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Solution

The fourth proportional to 12,304.74, 18,459.78 and 3,985.60 is: 5,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.74 : 18,459.78 = 3,985.60 : x
  2. Step 2: Convert to fraction form
    12,304.74/18,459.78 = 3,985.60/x
  3. Step 3: Cross multiply
    12,304.74x = 18,459.78 × 3,985.60
  4. Step 4: Simplify right side
    12,304.74x = 73,573,299.17
  5. Step 5: Solve for x
    x = 73,573,299.17/12,304.74
  6. Step 6: Final answer
    x = 5,979.26

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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.