Home / 9,390.40-14,078.61-5,691.74

Finding the Fourth Proportional to 9,390.40, 14,078.61 and 5,691.74

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Solution

The fourth proportional to 9,390.40, 14,078.61 and 5,691.74 is: 8,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.40 : 14,078.61 = 5,691.74 : x
  2. Step 2: Convert to fraction form
    9,390.40/14,078.61 = 5,691.74/x
  3. Step 3: Cross multiply
    9,390.40x = 14,078.61 × 5,691.74
  4. Step 4: Simplify right side
    9,390.40x = 80,131,717.29
  5. Step 5: Solve for x
    x = 80,131,717.29/9,390.40
  6. Step 6: Final answer
    x = 8,533.37

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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.