Home / 14,127.40-19,490.43-8,156.89

Finding the Fourth Proportional to 14,127.40, 19,490.43 and 8,156.89

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Solution

The fourth proportional to 14,127.40, 19,490.43 and 8,156.89 is: 11,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.40 : 19,490.43 = 8,156.89 : x
  2. Step 2: Convert to fraction form
    14,127.40/19,490.43 = 8,156.89/x
  3. Step 3: Cross multiply
    14,127.40x = 19,490.43 × 8,156.89
  4. Step 4: Simplify right side
    14,127.40x = 158,981,293.56
  5. Step 5: Solve for x
    x = 158,981,293.56/14,127.40
  6. Step 6: Final answer
    x = 11,253.40

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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.