Home / 14,318.40-19,760.04-8,031.18

Finding the Fourth Proportional to 14,318.40, 19,760.04 and 8,031.18

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Solution

The fourth proportional to 14,318.40, 19,760.04 and 8,031.18 is: 11,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.40 : 19,760.04 = 8,031.18 : x
  2. Step 2: Convert to fraction form
    14,318.40/19,760.04 = 8,031.18/x
  3. Step 3: Cross multiply
    14,318.40x = 19,760.04 × 8,031.18
  4. Step 4: Simplify right side
    14,318.40x = 158,696,438.05
  5. Step 5: Solve for x
    x = 158,696,438.05/14,318.40
  6. Step 6: Final answer
    x = 11,083.39

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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.