Home / 14,990.12-20,686.94-8,276.04

Finding the Fourth Proportional to 14,990.12, 20,686.94 and 8,276.04

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Solution

The fourth proportional to 14,990.12, 20,686.94 and 8,276.04 is: 11,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.12 : 20,686.94 = 8,276.04 : x
  2. Step 2: Convert to fraction form
    14,990.12/20,686.94 = 8,276.04/x
  3. Step 3: Cross multiply
    14,990.12x = 20,686.94 × 8,276.04
  4. Step 4: Simplify right side
    14,990.12x = 171,205,942.92
  5. Step 5: Solve for x
    x = 171,205,942.92/14,990.12
  6. Step 6: Final answer
    x = 11,421.25

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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.