Home / 14,248.96-19,686.44-12,146.72

Finding the Fourth Proportional to 14,248.96, 19,686.44 and 12,146.72

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Solution

The fourth proportional to 14,248.96, 19,686.44 and 12,146.72 is: 16,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.96 : 19,686.44 = 12,146.72 : x
  2. Step 2: Convert to fraction form
    14,248.96/19,686.44 = 12,146.72/x
  3. Step 3: Cross multiply
    14,248.96x = 19,686.44 × 12,146.72
  4. Step 4: Simplify right side
    14,248.96x = 239,125,606.41
  5. Step 5: Solve for x
    x = 239,125,606.41/14,248.96
  6. Step 6: Final answer
    x = 16,781.97

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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.