Home / 10,988.52-15,163.07-6,142.34

Finding the Fourth Proportional to 10,988.52, 15,163.07 and 6,142.34

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Solution

The fourth proportional to 10,988.52, 15,163.07 and 6,142.34 is: 8,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.52 : 15,163.07 = 6,142.34 : x
  2. Step 2: Convert to fraction form
    10,988.52/15,163.07 = 6,142.34/x
  3. Step 3: Cross multiply
    10,988.52x = 15,163.07 × 6,142.34
  4. Step 4: Simplify right side
    10,988.52x = 93,136,624.86
  5. Step 5: Solve for x
    x = 93,136,624.86/10,988.52
  6. Step 6: Final answer
    x = 8,475.81

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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.