Home / 8,722.90-13,085.70-2,877.76

Finding the Fourth Proportional to 8,722.90, 13,085.70 and 2,877.76

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Solution

The fourth proportional to 8,722.90, 13,085.70 and 2,877.76 is: 4,317.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.90 : 13,085.70 = 2,877.76 : x
  2. Step 2: Convert to fraction form
    8,722.90/13,085.70 = 2,877.76/x
  3. Step 3: Cross multiply
    8,722.90x = 13,085.70 × 2,877.76
  4. Step 4: Simplify right side
    8,722.90x = 37,657,504.03
  5. Step 5: Solve for x
    x = 37,657,504.03/8,722.90
  6. Step 6: Final answer
    x = 4,317.09

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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.