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Finding the Fourth Proportional to 14,630.61, 21,900.42 and 7,950.42

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Solution

The fourth proportional to 14,630.61, 21,900.42 and 7,950.42 is: 11,900.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.61 : 21,900.42 = 7,950.42 : x
  2. Step 2: Convert to fraction form
    14,630.61/21,900.42 = 7,950.42/x
  3. Step 3: Cross multiply
    14,630.61x = 21,900.42 × 7,950.42
  4. Step 4: Simplify right side
    14,630.61x = 174,117,537.18
  5. Step 5: Solve for x
    x = 174,117,537.18/14,630.61
  6. Step 6: Final answer
    x = 11,900.91

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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.