Home / 12,740.91-19,086.62-6,320.36

Finding the Fourth Proportional to 12,740.91, 19,086.62 and 6,320.36

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Solution

The fourth proportional to 12,740.91, 19,086.62 and 6,320.36 is: 9,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.91 : 19,086.62 = 6,320.36 : x
  2. Step 2: Convert to fraction form
    12,740.91/19,086.62 = 6,320.36/x
  3. Step 3: Cross multiply
    12,740.91x = 19,086.62 × 6,320.36
  4. Step 4: Simplify right side
    12,740.91x = 120,634,182.55
  5. Step 5: Solve for x
    x = 120,634,182.55/12,740.91
  6. Step 6: Final answer
    x = 9,468.25

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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.