Home / 19,909.89-27,475.83-10,957.14

Finding the Fourth Proportional to 19,909.89, 27,475.83 and 10,957.14

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Solution

The fourth proportional to 19,909.89, 27,475.83 and 10,957.14 is: 15,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.89 : 27,475.83 = 10,957.14 : x
  2. Step 2: Convert to fraction form
    19,909.89/27,475.83 = 10,957.14/x
  3. Step 3: Cross multiply
    19,909.89x = 27,475.83 × 10,957.14
  4. Step 4: Simplify right side
    19,909.89x = 301,056,515.93
  5. Step 5: Solve for x
    x = 301,056,515.93/19,909.89
  6. Step 6: Final answer
    x = 15,120.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.