Home / 13,777.44-19,013.04-7,489.92

Finding the Fourth Proportional to 13,777.44, 19,013.04 and 7,489.92

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Solution

The fourth proportional to 13,777.44, 19,013.04 and 7,489.92 is: 10,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.44 : 19,013.04 = 7,489.92 : x
  2. Step 2: Convert to fraction form
    13,777.44/19,013.04 = 7,489.92/x
  3. Step 3: Cross multiply
    13,777.44x = 19,013.04 × 7,489.92
  4. Step 4: Simplify right side
    13,777.44x = 142,406,148.56
  5. Step 5: Solve for x
    x = 142,406,148.56/13,777.44
  6. Step 6: Final answer
    x = 10,336.18

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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.