Home / 12,352.89-18,547.79-12,168.36

Finding the Fourth Proportional to 12,352.89, 18,547.79 and 12,168.36

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Solution

The fourth proportional to 12,352.89, 18,547.79 and 12,168.36 is: 18,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.89 : 18,547.79 = 12,168.36 : x
  2. Step 2: Convert to fraction form
    12,352.89/18,547.79 = 12,168.36/x
  3. Step 3: Cross multiply
    12,352.89x = 18,547.79 × 12,168.36
  4. Step 4: Simplify right side
    12,352.89x = 225,696,185.92
  5. Step 5: Solve for x
    x = 225,696,185.92/12,352.89
  6. Step 6: Final answer
    x = 18,270.72

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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.