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Finding the Fourth Proportional to 14,601.50, 20,150.08 and 7,977.50

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Solution

The fourth proportional to 14,601.50, 20,150.08 and 7,977.50 is: 11,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,601.50 : 20,150.08 = 7,977.50 : x
  2. Step 2: Convert to fraction form
    14,601.50/20,150.08 = 7,977.50/x
  3. Step 3: Cross multiply
    14,601.50x = 20,150.08 × 7,977.50
  4. Step 4: Simplify right side
    14,601.50x = 160,747,263.20
  5. Step 5: Solve for x
    x = 160,747,263.20/14,601.50
  6. Step 6: Final answer
    x = 11,008.96

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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.