Home / 7,990.16-11,026.10-4,453.28

Finding the Fourth Proportional to 7,990.16, 11,026.10 and 4,453.28

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Solution

The fourth proportional to 7,990.16, 11,026.10 and 4,453.28 is: 6,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.16 : 11,026.10 = 4,453.28 : x
  2. Step 2: Convert to fraction form
    7,990.16/11,026.10 = 4,453.28/x
  3. Step 3: Cross multiply
    7,990.16x = 11,026.10 × 4,453.28
  4. Step 4: Simplify right side
    7,990.16x = 49,102,310.61
  5. Step 5: Solve for x
    x = 49,102,310.61/7,990.16
  6. Step 6: Final answer
    x = 6,145.35

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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.