Home / 9,829.60-13,582.12-7,856.44

Finding the Fourth Proportional to 9,829.60, 13,582.12 and 7,856.44

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Solution

The fourth proportional to 9,829.60, 13,582.12 and 7,856.44 is: 10,855.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,829.60 : 13,582.12 = 7,856.44 : x
  2. Step 2: Convert to fraction form
    9,829.60/13,582.12 = 7,856.44/x
  3. Step 3: Cross multiply
    9,829.60x = 13,582.12 × 7,856.44
  4. Step 4: Simplify right side
    9,829.60x = 106,707,110.85
  5. Step 5: Solve for x
    x = 106,707,110.85/9,829.60
  6. Step 6: Final answer
    x = 10,855.69

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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.