Home / 8,813.52-13,220.96-2,970.13

Finding the Fourth Proportional to 8,813.52, 13,220.96 and 2,970.13

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Solution

The fourth proportional to 8,813.52, 13,220.96 and 2,970.13 is: 4,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.52 : 13,220.96 = 2,970.13 : x
  2. Step 2: Convert to fraction form
    8,813.52/13,220.96 = 2,970.13/x
  3. Step 3: Cross multiply
    8,813.52x = 13,220.96 × 2,970.13
  4. Step 4: Simplify right side
    8,813.52x = 39,267,896.39
  5. Step 5: Solve for x
    x = 39,267,896.39/8,813.52
  6. Step 6: Final answer
    x = 4,455.42

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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.