Home / 12,582.80-18,837.72-11,248.72

Finding the Fourth Proportional to 12,582.80, 18,837.72 and 11,248.72

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Solution

The fourth proportional to 12,582.80, 18,837.72 and 11,248.72 is: 16,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.80 : 18,837.72 = 11,248.72 : x
  2. Step 2: Convert to fraction form
    12,582.80/18,837.72 = 11,248.72/x
  3. Step 3: Cross multiply
    12,582.80x = 18,837.72 × 11,248.72
  4. Step 4: Simplify right side
    12,582.80x = 211,900,237.72
  5. Step 5: Solve for x
    x = 211,900,237.72/12,582.80
  6. Step 6: Final answer
    x = 16,840.47

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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.