Home / 8,869.57-12,240.09-4,890.83

Finding the Fourth Proportional to 8,869.57, 12,240.09 and 4,890.83

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Solution

The fourth proportional to 8,869.57, 12,240.09 and 4,890.83 is: 6,749.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.57 : 12,240.09 = 4,890.83 : x
  2. Step 2: Convert to fraction form
    8,869.57/12,240.09 = 4,890.83/x
  3. Step 3: Cross multiply
    8,869.57x = 12,240.09 × 4,890.83
  4. Step 4: Simplify right side
    8,869.57x = 59,864,199.37
  5. Step 5: Solve for x
    x = 59,864,199.37/8,869.57
  6. Step 6: Final answer
    x = 6,749.39

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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.