Home / 13,887.17-20,793.69-8,332.90

Finding the Fourth Proportional to 13,887.17, 20,793.69 and 8,332.90

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Solution

The fourth proportional to 13,887.17, 20,793.69 and 8,332.90 is: 12,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.17 : 20,793.69 = 8,332.90 : x
  2. Step 2: Convert to fraction form
    13,887.17/20,793.69 = 8,332.90/x
  3. Step 3: Cross multiply
    13,887.17x = 20,793.69 × 8,332.90
  4. Step 4: Simplify right side
    13,887.17x = 173,271,739.40
  5. Step 5: Solve for x
    x = 173,271,739.40/13,887.17
  6. Step 6: Final answer
    x = 12,477.11

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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.