Home / 8,813.56-13,221.06-4,428.76

Finding the Fourth Proportional to 8,813.56, 13,221.06 and 4,428.76

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Solution

The fourth proportional to 8,813.56, 13,221.06 and 4,428.76 is: 6,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.56 : 13,221.06 = 4,428.76 : x
  2. Step 2: Convert to fraction form
    8,813.56/13,221.06 = 4,428.76/x
  3. Step 3: Cross multiply
    8,813.56x = 13,221.06 × 4,428.76
  4. Step 4: Simplify right side
    8,813.56x = 58,552,901.69
  5. Step 5: Solve for x
    x = 58,552,901.69/8,813.56
  6. Step 6: Final answer
    x = 6,643.50

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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.