Home / 7,988.36-11,023.44-4,631.32

Finding the Fourth Proportional to 7,988.36, 11,023.44 and 4,631.32

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Solution

The fourth proportional to 7,988.36, 11,023.44 and 4,631.32 is: 6,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.36 : 11,023.44 = 4,631.32 : x
  2. Step 2: Convert to fraction form
    7,988.36/11,023.44 = 4,631.32/x
  3. Step 3: Cross multiply
    7,988.36x = 11,023.44 × 4,631.32
  4. Step 4: Simplify right side
    7,988.36x = 51,053,078.14
  5. Step 5: Solve for x
    x = 51,053,078.14/7,988.36
  6. Step 6: Final answer
    x = 6,390.93

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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.