Home / 13,359.76-20,039.82-12,547.96

Finding the Fourth Proportional to 13,359.76, 20,039.82 and 12,547.96

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Solution

The fourth proportional to 13,359.76, 20,039.82 and 12,547.96 is: 18,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.76 : 20,039.82 = 12,547.96 : x
  2. Step 2: Convert to fraction form
    13,359.76/20,039.82 = 12,547.96/x
  3. Step 3: Cross multiply
    13,359.76x = 20,039.82 × 12,547.96
  4. Step 4: Simplify right side
    13,359.76x = 251,458,859.77
  5. Step 5: Solve for x
    x = 251,458,859.77/13,359.76
  6. Step 6: Final answer
    x = 18,822.11

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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.