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Finding the Fourth Proportional to 14,005, 21,000.70 and 6,603.24

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Solution

The fourth proportional to 14,005, 21,000.70 and 6,603.24 is: 9,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005 : 21,000.70 = 6,603.24 : x
  2. Step 2: Convert to fraction form
    14,005/21,000.70 = 6,603.24/x
  3. Step 3: Cross multiply
    14,005x = 21,000.70 × 6,603.24
  4. Step 4: Simplify right side
    14,005x = 138,672,662.27
  5. Step 5: Solve for x
    x = 138,672,662.27/14,005
  6. Step 6: Final answer
    x = 9,901.65

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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.