Home / 19,687.44-27,146.16-12,970.92

Finding the Fourth Proportional to 19,687.44, 27,146.16 and 12,970.92

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Solution

The fourth proportional to 19,687.44, 27,146.16 and 12,970.92 is: 17,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.44 : 27,146.16 = 12,970.92 : x
  2. Step 2: Convert to fraction form
    19,687.44/27,146.16 = 12,970.92/x
  3. Step 3: Cross multiply
    19,687.44x = 27,146.16 × 12,970.92
  4. Step 4: Simplify right side
    19,687.44x = 352,110,669.67
  5. Step 5: Solve for x
    x = 352,110,669.67/19,687.44
  6. Step 6: Final answer
    x = 17,885.04

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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.