Home / 8,813.40-13,219.20-2,970.06

Finding the Fourth Proportional to 8,813.40, 13,219.20 and 2,970.06

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Solution

The fourth proportional to 8,813.40, 13,219.20 and 2,970.06 is: 4,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.40 : 13,219.20 = 2,970.06 : x
  2. Step 2: Convert to fraction form
    8,813.40/13,219.20 = 2,970.06/x
  3. Step 3: Cross multiply
    8,813.40x = 13,219.20 × 2,970.06
  4. Step 4: Simplify right side
    8,813.40x = 39,261,817.15
  5. Step 5: Solve for x
    x = 39,261,817.15/8,813.40
  6. Step 6: Final answer
    x = 4,454.79

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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.