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Finding the Fourth Proportional to 18,952.56, 28,429.08 and 5,101.56

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Solution

The fourth proportional to 18,952.56, 28,429.08 and 5,101.56 is: 7,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.56 : 28,429.08 = 5,101.56 : x
  2. Step 2: Convert to fraction form
    18,952.56/28,429.08 = 5,101.56/x
  3. Step 3: Cross multiply
    18,952.56x = 28,429.08 × 5,101.56
  4. Step 4: Simplify right side
    18,952.56x = 145,032,657.36
  5. Step 5: Solve for x
    x = 145,032,657.36/18,952.56
  6. Step 6: Final answer
    x = 7,652.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.