Home / 14,008.50-21,005.91-6,606.72

Finding the Fourth Proportional to 14,008.50, 21,005.91 and 6,606.72

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Solution

The fourth proportional to 14,008.50, 21,005.91 and 6,606.72 is: 9,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.50 : 21,005.91 = 6,606.72 : x
  2. Step 2: Convert to fraction form
    14,008.50/21,005.91 = 6,606.72/x
  3. Step 3: Cross multiply
    14,008.50x = 21,005.91 × 6,606.72
  4. Step 4: Simplify right side
    14,008.50x = 138,780,165.72
  5. Step 5: Solve for x
    x = 138,780,165.72/14,008.50
  6. Step 6: Final answer
    x = 9,906.85

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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.