Home / 14,243.61-21,369.13-8,325.55

Finding the Fourth Proportional to 14,243.61, 21,369.13 and 8,325.55

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Solution

The fourth proportional to 14,243.61, 21,369.13 and 8,325.55 is: 12,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.61 : 21,369.13 = 8,325.55 : x
  2. Step 2: Convert to fraction form
    14,243.61/21,369.13 = 8,325.55/x
  3. Step 3: Cross multiply
    14,243.61x = 21,369.13 × 8,325.55
  4. Step 4: Simplify right side
    14,243.61x = 177,909,729.48
  5. Step 5: Solve for x
    x = 177,909,729.48/14,243.61
  6. Step 6: Final answer
    x = 12,490.49

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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.