Home / 14,299.71-21,436.61-8,130.75

Finding the Fourth Proportional to 14,299.71, 21,436.61 and 8,130.75

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Solution

The fourth proportional to 14,299.71, 21,436.61 and 8,130.75 is: 12,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,299.71 : 21,436.61 = 8,130.75 : x
  2. Step 2: Convert to fraction form
    14,299.71/21,436.61 = 8,130.75/x
  3. Step 3: Cross multiply
    14,299.71x = 21,436.61 × 8,130.75
  4. Step 4: Simplify right side
    14,299.71x = 174,295,676.10
  5. Step 5: Solve for x
    x = 174,295,676.10/14,299.71
  6. Step 6: Final answer
    x = 12,188.76

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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.