Home / 12,700.28-19,054.20-3,935.84

Finding the Fourth Proportional to 12,700.28, 19,054.20 and 3,935.84

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Solution

The fourth proportional to 12,700.28, 19,054.20 and 3,935.84 is: 5,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.28 : 19,054.20 = 3,935.84 : x
  2. Step 2: Convert to fraction form
    12,700.28/19,054.20 = 3,935.84/x
  3. Step 3: Cross multiply
    12,700.28x = 19,054.20 × 3,935.84
  4. Step 4: Simplify right side
    12,700.28x = 74,994,282.53
  5. Step 5: Solve for x
    x = 74,994,282.53/12,700.28
  6. Step 6: Final answer
    x = 5,904.93

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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.