Home / 7,156.35-10,719.95-6,418.85

Finding the Fourth Proportional to 7,156.35, 10,719.95 and 6,418.85

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Solution

The fourth proportional to 7,156.35, 10,719.95 and 6,418.85 is: 9,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.35 : 10,719.95 = 6,418.85 : x
  2. Step 2: Convert to fraction form
    7,156.35/10,719.95 = 6,418.85/x
  3. Step 3: Cross multiply
    7,156.35x = 10,719.95 × 6,418.85
  4. Step 4: Simplify right side
    7,156.35x = 68,809,665.36
  5. Step 5: Solve for x
    x = 68,809,665.36/7,156.35
  6. Step 6: Final answer
    x = 9,615.19

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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.