Home / 7,618.77-10,514.15-4,215.83

Finding the Fourth Proportional to 7,618.77, 10,514.15 and 4,215.83

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Solution

The fourth proportional to 7,618.77, 10,514.15 and 4,215.83 is: 5,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.77 : 10,514.15 = 4,215.83 : x
  2. Step 2: Convert to fraction form
    7,618.77/10,514.15 = 4,215.83/x
  3. Step 3: Cross multiply
    7,618.77x = 10,514.15 × 4,215.83
  4. Step 4: Simplify right side
    7,618.77x = 44,325,868.99
  5. Step 5: Solve for x
    x = 44,325,868.99/7,618.77
  6. Step 6: Final answer
    x = 5,817.98

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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.