Home / 14,799.78-20,423.97-8,085.69

Finding the Fourth Proportional to 14,799.78, 20,423.97 and 8,085.69

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Solution

The fourth proportional to 14,799.78, 20,423.97 and 8,085.69 is: 11,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.78 : 20,423.97 = 8,085.69 : x
  2. Step 2: Convert to fraction form
    14,799.78/20,423.97 = 8,085.69/x
  3. Step 3: Cross multiply
    14,799.78x = 20,423.97 × 8,085.69
  4. Step 4: Simplify right side
    14,799.78x = 165,141,889.99
  5. Step 5: Solve for x
    x = 165,141,889.99/14,799.78
  6. Step 6: Final answer
    x = 11,158.40

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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.