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Finding the Fourth Proportional to 14,017.02, 21,000.02 and 8,155.86

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Solution

The fourth proportional to 14,017.02, 21,000.02 and 8,155.86 is: 12,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.02 : 21,000.02 = 8,155.86 : x
  2. Step 2: Convert to fraction form
    14,017.02/21,000.02 = 8,155.86/x
  3. Step 3: Cross multiply
    14,017.02x = 21,000.02 × 8,155.86
  4. Step 4: Simplify right side
    14,017.02x = 171,273,223.12
  5. Step 5: Solve for x
    x = 171,273,223.12/14,017.02
  6. Step 6: Final answer
    x = 12,218.95

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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.