Home / 15,297.57-21,110.76-8,583.28

Finding the Fourth Proportional to 15,297.57, 21,110.76 and 8,583.28

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Solution

The fourth proportional to 15,297.57, 21,110.76 and 8,583.28 is: 11,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.57 : 21,110.76 = 8,583.28 : x
  2. Step 2: Convert to fraction form
    15,297.57/21,110.76 = 8,583.28/x
  3. Step 3: Cross multiply
    15,297.57x = 21,110.76 × 8,583.28
  4. Step 4: Simplify right side
    15,297.57x = 181,199,511.32
  5. Step 5: Solve for x
    x = 181,199,511.32/15,297.57
  6. Step 6: Final answer
    x = 11,844.99

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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.