Home / 7,980.81-11,013.86-4,444.02

Finding the Fourth Proportional to 7,980.81, 11,013.86 and 4,444.02

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Solution

The fourth proportional to 7,980.81, 11,013.86 and 4,444.02 is: 6,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.81 : 11,013.86 = 4,444.02 : x
  2. Step 2: Convert to fraction form
    7,980.81/11,013.86 = 4,444.02/x
  3. Step 3: Cross multiply
    7,980.81x = 11,013.86 × 4,444.02
  4. Step 4: Simplify right side
    7,980.81x = 48,945,764.36
  5. Step 5: Solve for x
    x = 48,945,764.36/7,980.81
  6. Step 6: Final answer
    x = 6,132.93

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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.