Home / 15,297.83-21,111.17-8,924.21

Finding the Fourth Proportional to 15,297.83, 21,111.17 and 8,924.21

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Solution

The fourth proportional to 15,297.83, 21,111.17 and 8,924.21 is: 12,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.83 : 21,111.17 = 8,924.21 : x
  2. Step 2: Convert to fraction form
    15,297.83/21,111.17 = 8,924.21/x
  3. Step 3: Cross multiply
    15,297.83x = 21,111.17 × 8,924.21
  4. Step 4: Simplify right side
    15,297.83x = 188,400,431.18
  5. Step 5: Solve for x
    x = 188,400,431.18/15,297.83
  6. Step 6: Final answer
    x = 12,315.50

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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.