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Finding the Fourth Proportional to 19,372.60, 29,037.30 and 8,277.40

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Solution

The fourth proportional to 19,372.60, 29,037.30 and 8,277.40 is: 12,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.60 : 29,037.30 = 8,277.40 : x
  2. Step 2: Convert to fraction form
    19,372.60/29,037.30 = 8,277.40/x
  3. Step 3: Cross multiply
    19,372.60x = 29,037.30 × 8,277.40
  4. Step 4: Simplify right side
    19,372.60x = 240,353,347.02
  5. Step 5: Solve for x
    x = 240,353,347.02/19,372.60
  6. Step 6: Final answer
    x = 12,406.87

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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.