Home / 12,258.07-18,390.53-4,362.39

Finding the Fourth Proportional to 12,258.07, 18,390.53 and 4,362.39

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Solution

The fourth proportional to 12,258.07, 18,390.53 and 4,362.39 is: 6,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.07 : 18,390.53 = 4,362.39 : x
  2. Step 2: Convert to fraction form
    12,258.07/18,390.53 = 4,362.39/x
  3. Step 3: Cross multiply
    12,258.07x = 18,390.53 × 4,362.39
  4. Step 4: Simplify right side
    12,258.07x = 80,226,664.17
  5. Step 5: Solve for x
    x = 80,226,664.17/12,258.07
  6. Step 6: Final answer
    x = 6,544.80

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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.