Home / 7,671.36-11,499.30-2,988.44

Finding the Fourth Proportional to 7,671.36, 11,499.30 and 2,988.44

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Solution

The fourth proportional to 7,671.36, 11,499.30 and 2,988.44 is: 4,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.36 : 11,499.30 = 2,988.44 : x
  2. Step 2: Convert to fraction form
    7,671.36/11,499.30 = 2,988.44/x
  3. Step 3: Cross multiply
    7,671.36x = 11,499.30 × 2,988.44
  4. Step 4: Simplify right side
    7,671.36x = 34,364,968.09
  5. Step 5: Solve for x
    x = 34,364,968.09/7,671.36
  6. Step 6: Final answer
    x = 4,479.64

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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.