Home / 10,089.24-15,124.14-5,405.82

Finding the Fourth Proportional to 10,089.24, 15,124.14 and 5,405.82

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Solution

The fourth proportional to 10,089.24, 15,124.14 and 5,405.82 is: 8,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.24 : 15,124.14 = 5,405.82 : x
  2. Step 2: Convert to fraction form
    10,089.24/15,124.14 = 5,405.82/x
  3. Step 3: Cross multiply
    10,089.24x = 15,124.14 × 5,405.82
  4. Step 4: Simplify right side
    10,089.24x = 81,758,378.49
  5. Step 5: Solve for x
    x = 81,758,378.49/10,089.24
  6. Step 6: Final answer
    x = 8,103.52

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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.