Home / 7,412.32-11,108.76-5,455.36

Finding the Fourth Proportional to 7,412.32, 11,108.76 and 5,455.36

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Solution

The fourth proportional to 7,412.32, 11,108.76 and 5,455.36 is: 8,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.32 : 11,108.76 = 5,455.36 : x
  2. Step 2: Convert to fraction form
    7,412.32/11,108.76 = 5,455.36/x
  3. Step 3: Cross multiply
    7,412.32x = 11,108.76 × 5,455.36
  4. Step 4: Simplify right side
    7,412.32x = 60,602,284.95
  5. Step 5: Solve for x
    x = 60,602,284.95/7,412.32
  6. Step 6: Final answer
    x = 8,175.89

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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.