Home / 6,663.36-10,001.13-3,378.72

Finding the Fourth Proportional to 6,663.36, 10,001.13 and 3,378.72

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Solution

The fourth proportional to 6,663.36, 10,001.13 and 3,378.72 is: 5,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.36 : 10,001.13 = 3,378.72 : x
  2. Step 2: Convert to fraction form
    6,663.36/10,001.13 = 3,378.72/x
  3. Step 3: Cross multiply
    6,663.36x = 10,001.13 × 3,378.72
  4. Step 4: Simplify right side
    6,663.36x = 33,790,967.95
  5. Step 5: Solve for x
    x = 33,790,967.95/6,663.36
  6. Step 6: Final answer
    x = 5,071.16

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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.