Home / 18,746.09-28,118.52-4,895.09

Finding the Fourth Proportional to 18,746.09, 28,118.52 and 4,895.09

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Solution

The fourth proportional to 18,746.09, 28,118.52 and 4,895.09 is: 7,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.09 : 28,118.52 = 4,895.09 : x
  2. Step 2: Convert to fraction form
    18,746.09/28,118.52 = 4,895.09/x
  3. Step 3: Cross multiply
    18,746.09x = 28,118.52 × 4,895.09
  4. Step 4: Simplify right side
    18,746.09x = 137,642,545.47
  5. Step 5: Solve for x
    x = 137,642,545.47/18,746.09
  6. Step 6: Final answer
    x = 7,342.47

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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.