Home / 15,299.22-21,111.21-8,583.45

Finding the Fourth Proportional to 15,299.22, 21,111.21 and 8,583.45

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Solution

The fourth proportional to 15,299.22, 21,111.21 and 8,583.45 is: 11,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.22 : 21,111.21 = 8,583.45 : x
  2. Step 2: Convert to fraction form
    15,299.22/21,111.21 = 8,583.45/x
  3. Step 3: Cross multiply
    15,299.22x = 21,111.21 × 8,583.45
  4. Step 4: Simplify right side
    15,299.22x = 181,207,015.47
  5. Step 5: Solve for x
    x = 181,207,015.47/15,299.22
  6. Step 6: Final answer
    x = 11,844.20

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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.