Home / 15,848.06-21,874.25-9,886.66

Finding the Fourth Proportional to 15,848.06, 21,874.25 and 9,886.66

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Solution

The fourth proportional to 15,848.06, 21,874.25 and 9,886.66 is: 13,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.06 : 21,874.25 = 9,886.66 : x
  2. Step 2: Convert to fraction form
    15,848.06/21,874.25 = 9,886.66/x
  3. Step 3: Cross multiply
    15,848.06x = 21,874.25 × 9,886.66
  4. Step 4: Simplify right side
    15,848.06x = 216,263,242.54
  5. Step 5: Solve for x
    x = 216,263,242.54/15,848.06
  6. Step 6: Final answer
    x = 13,646.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.