Home / 9,412.52-12,989.37-5,163.58

Finding the Fourth Proportional to 9,412.52, 12,989.37 and 5,163.58

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Solution

The fourth proportional to 9,412.52, 12,989.37 and 5,163.58 is: 7,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.52 : 12,989.37 = 5,163.58 : x
  2. Step 2: Convert to fraction form
    9,412.52/12,989.37 = 5,163.58/x
  3. Step 3: Cross multiply
    9,412.52x = 12,989.37 × 5,163.58
  4. Step 4: Simplify right side
    9,412.52x = 67,071,686.74
  5. Step 5: Solve for x
    x = 67,071,686.74/9,412.52
  6. Step 6: Final answer
    x = 7,125.80

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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.