Home / 14,599.80-20,149.29-8,311.50

Finding the Fourth Proportional to 14,599.80, 20,149.29 and 8,311.50

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Solution

The fourth proportional to 14,599.80, 20,149.29 and 8,311.50 is: 11,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.80 : 20,149.29 = 8,311.50 : x
  2. Step 2: Convert to fraction form
    14,599.80/20,149.29 = 8,311.50/x
  3. Step 3: Cross multiply
    14,599.80x = 20,149.29 × 8,311.50
  4. Step 4: Simplify right side
    14,599.80x = 167,470,823.84
  5. Step 5: Solve for x
    x = 167,470,823.84/14,599.80
  6. Step 6: Final answer
    x = 11,470.76

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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.