Home / 14,389.89-19,861.11-9,671.44

Finding the Fourth Proportional to 14,389.89, 19,861.11 and 9,671.44

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Solution

The fourth proportional to 14,389.89, 19,861.11 and 9,671.44 is: 13,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.89 : 19,861.11 = 9,671.44 : x
  2. Step 2: Convert to fraction form
    14,389.89/19,861.11 = 9,671.44/x
  3. Step 3: Cross multiply
    14,389.89x = 19,861.11 × 9,671.44
  4. Step 4: Simplify right side
    14,389.89x = 192,085,533.70
  5. Step 5: Solve for x
    x = 192,085,533.70/14,389.89
  6. Step 6: Final answer
    x = 13,348.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.