Home / 16,712.55-25,065.69-8,390.32

Finding the Fourth Proportional to 16,712.55, 25,065.69 and 8,390.32

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Solution

The fourth proportional to 16,712.55, 25,065.69 and 8,390.32 is: 12,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,712.55 : 25,065.69 = 8,390.32 : x
  2. Step 2: Convert to fraction form
    16,712.55/25,065.69 = 8,390.32/x
  3. Step 3: Cross multiply
    16,712.55x = 25,065.69 × 8,390.32
  4. Step 4: Simplify right side
    16,712.55x = 210,309,065.99
  5. Step 5: Solve for x
    x = 210,309,065.99/16,712.55
  6. Step 6: Final answer
    x = 12,583.90

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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.