Home / 14,138.77-21,179.45-6,630.99

Finding the Fourth Proportional to 14,138.77, 21,179.45 and 6,630.99

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Solution

The fourth proportional to 14,138.77, 21,179.45 and 6,630.99 is: 9,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.77 : 21,179.45 = 6,630.99 : x
  2. Step 2: Convert to fraction form
    14,138.77/21,179.45 = 6,630.99/x
  3. Step 3: Cross multiply
    14,138.77x = 21,179.45 × 6,630.99
  4. Step 4: Simplify right side
    14,138.77x = 140,440,721.16
  5. Step 5: Solve for x
    x = 140,440,721.16/14,138.77
  6. Step 6: Final answer
    x = 9,933.02

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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.