Home / 13,145.83-19,724.51-6,904.40

Finding the Fourth Proportional to 13,145.83, 19,724.51 and 6,904.40

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Solution

The fourth proportional to 13,145.83, 19,724.51 and 6,904.40 is: 10,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.83 : 19,724.51 = 6,904.40 : x
  2. Step 2: Convert to fraction form
    13,145.83/19,724.51 = 6,904.40/x
  3. Step 3: Cross multiply
    13,145.83x = 19,724.51 × 6,904.40
  4. Step 4: Simplify right side
    13,145.83x = 136,185,773.70
  5. Step 5: Solve for x
    x = 136,185,773.70/13,145.83
  6. Step 6: Final answer
    x = 10,359.62

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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.