Home / 7,980.66-11,013.30-4,443.84

Finding the Fourth Proportional to 7,980.66, 11,013.30 and 4,443.84

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Solution

The fourth proportional to 7,980.66, 11,013.30 and 4,443.84 is: 6,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.66 : 11,013.30 = 4,443.84 : x
  2. Step 2: Convert to fraction form
    7,980.66/11,013.30 = 4,443.84/x
  3. Step 3: Cross multiply
    7,980.66x = 11,013.30 × 4,443.84
  4. Step 4: Simplify right side
    7,980.66x = 48,941,343.07
  5. Step 5: Solve for x
    x = 48,941,343.07/7,980.66
  6. Step 6: Final answer
    x = 6,132.49

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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.