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Finding the Fourth Proportional to 14,002.51, 21,000.12 and 6,605.01

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Solution

The fourth proportional to 14,002.51, 21,000.12 and 6,605.01 is: 9,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.51 : 21,000.12 = 6,605.01 : x
  2. Step 2: Convert to fraction form
    14,002.51/21,000.12 = 6,605.01/x
  3. Step 3: Cross multiply
    14,002.51x = 21,000.12 × 6,605.01
  4. Step 4: Simplify right side
    14,002.51x = 138,706,002.60
  5. Step 5: Solve for x
    x = 138,706,002.60/14,002.51
  6. Step 6: Final answer
    x = 9,905.80

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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.