Home / 14,799.80-20,423.39-8,085.46

Finding the Fourth Proportional to 14,799.80, 20,423.39 and 8,085.46

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Solution

The fourth proportional to 14,799.80, 20,423.39 and 8,085.46 is: 11,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.80 : 20,423.39 = 8,085.46 : x
  2. Step 2: Convert to fraction form
    14,799.80/20,423.39 = 8,085.46/x
  3. Step 3: Cross multiply
    14,799.80x = 20,423.39 × 8,085.46
  4. Step 4: Simplify right side
    14,799.80x = 165,132,502.91
  5. Step 5: Solve for x
    x = 165,132,502.91/14,799.80
  6. Step 6: Final answer
    x = 11,157.75

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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.