Home / 8,930.24-13,390.74-5,239.70

Finding the Fourth Proportional to 8,930.24, 13,390.74 and 5,239.70

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Solution

The fourth proportional to 8,930.24, 13,390.74 and 5,239.70 is: 7,856.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.24 : 13,390.74 = 5,239.70 : x
  2. Step 2: Convert to fraction form
    8,930.24/13,390.74 = 5,239.70/x
  3. Step 3: Cross multiply
    8,930.24x = 13,390.74 × 5,239.70
  4. Step 4: Simplify right side
    8,930.24x = 70,163,460.38
  5. Step 5: Solve for x
    x = 70,163,460.38/8,930.24
  6. Step 6: Final answer
    x = 7,856.84

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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.