Home / 8,807.40-13,220.82-4,423.68

Finding the Fourth Proportional to 8,807.40, 13,220.82 and 4,423.68

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Solution

The fourth proportional to 8,807.40, 13,220.82 and 4,423.68 is: 6,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.40 : 13,220.82 = 4,423.68 : x
  2. Step 2: Convert to fraction form
    8,807.40/13,220.82 = 4,423.68/x
  3. Step 3: Cross multiply
    8,807.40x = 13,220.82 × 4,423.68
  4. Step 4: Simplify right side
    8,807.40x = 58,484,677.02
  5. Step 5: Solve for x
    x = 58,484,677.02/8,807.40
  6. Step 6: Final answer
    x = 6,640.40

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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.