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Finding the Fourth Proportional to 14,318.47, 19,758.48 and 7,945.39

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Solution

The fourth proportional to 14,318.47, 19,758.48 and 7,945.39 is: 10,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.47 : 19,758.48 = 7,945.39 : x
  2. Step 2: Convert to fraction form
    14,318.47/19,758.48 = 7,945.39/x
  3. Step 3: Cross multiply
    14,318.47x = 19,758.48 × 7,945.39
  4. Step 4: Simplify right side
    14,318.47x = 156,988,829.41
  5. Step 5: Solve for x
    x = 156,988,829.41/14,318.47
  6. Step 6: Final answer
    x = 10,964.08

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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.