Home / 13,145.12-19,697.40-6,473.96

Finding the Fourth Proportional to 13,145.12, 19,697.40 and 6,473.96

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Solution

The fourth proportional to 13,145.12, 19,697.40 and 6,473.96 is: 9,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.12 : 19,697.40 = 6,473.96 : x
  2. Step 2: Convert to fraction form
    13,145.12/19,697.40 = 6,473.96/x
  3. Step 3: Cross multiply
    13,145.12x = 19,697.40 × 6,473.96
  4. Step 4: Simplify right side
    13,145.12x = 127,520,179.70
  5. Step 5: Solve for x
    x = 127,520,179.70/13,145.12
  6. Step 6: Final answer
    x = 9,700.95

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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.