Home / 13,856.82-20,772.93-5,089.68

Finding the Fourth Proportional to 13,856.82, 20,772.93 and 5,089.68

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Solution

The fourth proportional to 13,856.82, 20,772.93 and 5,089.68 is: 7,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.82 : 20,772.93 = 5,089.68 : x
  2. Step 2: Convert to fraction form
    13,856.82/20,772.93 = 5,089.68/x
  3. Step 3: Cross multiply
    13,856.82x = 20,772.93 × 5,089.68
  4. Step 4: Simplify right side
    13,856.82x = 105,727,566.36
  5. Step 5: Solve for x
    x = 105,727,566.36/13,856.82
  6. Step 6: Final answer
    x = 7,630.00

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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.