Home / 15,848.61-21,872.75-11,862.74

Finding the Fourth Proportional to 15,848.61, 21,872.75 and 11,862.74

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Solution

The fourth proportional to 15,848.61, 21,872.75 and 11,862.74 is: 16,371.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.61 : 21,872.75 = 11,862.74 : x
  2. Step 2: Convert to fraction form
    15,848.61/21,872.75 = 11,862.74/x
  3. Step 3: Cross multiply
    15,848.61x = 21,872.75 × 11,862.74
  4. Step 4: Simplify right side
    15,848.61x = 259,470,577.66
  5. Step 5: Solve for x
    x = 259,470,577.66/15,848.61
  6. Step 6: Final answer
    x = 16,371.82

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1.5x scale

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.