Home / 7,945.02-10,977.35-6,279.22

Finding the Fourth Proportional to 7,945.02, 10,977.35 and 6,279.22

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Solution

The fourth proportional to 7,945.02, 10,977.35 and 6,279.22 is: 8,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.02 : 10,977.35 = 6,279.22 : x
  2. Step 2: Convert to fraction form
    7,945.02/10,977.35 = 6,279.22/x
  3. Step 3: Cross multiply
    7,945.02x = 10,977.35 × 6,279.22
  4. Step 4: Simplify right side
    7,945.02x = 68,929,195.67
  5. Step 5: Solve for x
    x = 68,929,195.67/7,945.02
  6. Step 6: Final answer
    x = 8,675.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.