Home / 9,815.12-13,542.50-6,228.77

Finding the Fourth Proportional to 9,815.12, 13,542.50 and 6,228.77

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Solution

The fourth proportional to 9,815.12, 13,542.50 and 6,228.77 is: 8,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.12 : 13,542.50 = 6,228.77 : x
  2. Step 2: Convert to fraction form
    9,815.12/13,542.50 = 6,228.77/x
  3. Step 3: Cross multiply
    9,815.12x = 13,542.50 × 6,228.77
  4. Step 4: Simplify right side
    9,815.12x = 84,353,143.80
  5. Step 5: Solve for x
    x = 84,353,143.80/9,815.12
  6. Step 6: Final answer
    x = 8,594.20

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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.