Home / 12,308.40-18,465.02-4,517.28

Finding the Fourth Proportional to 12,308.40, 18,465.02 and 4,517.28

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Solution

The fourth proportional to 12,308.40, 18,465.02 and 4,517.28 is: 6,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.40 : 18,465.02 = 4,517.28 : x
  2. Step 2: Convert to fraction form
    12,308.40/18,465.02 = 4,517.28/x
  3. Step 3: Cross multiply
    12,308.40x = 18,465.02 × 4,517.28
  4. Step 4: Simplify right side
    12,308.40x = 83,411,665.55
  5. Step 5: Solve for x
    x = 83,411,665.55/12,308.40
  6. Step 6: Final answer
    x = 6,776.81

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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.