Home / 8,578.32-11,837.36-4,749.20

Finding the Fourth Proportional to 8,578.32, 11,837.36 and 4,749.20

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Solution

The fourth proportional to 8,578.32, 11,837.36 and 4,749.20 is: 6,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.32 : 11,837.36 = 4,749.20 : x
  2. Step 2: Convert to fraction form
    8,578.32/11,837.36 = 4,749.20/x
  3. Step 3: Cross multiply
    8,578.32x = 11,837.36 × 4,749.20
  4. Step 4: Simplify right side
    8,578.32x = 56,217,990.11
  5. Step 5: Solve for x
    x = 56,217,990.11/8,578.32
  6. Step 6: Final answer
    x = 6,553.50

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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.