Home / 15,506.30-21,399.17-8,792.21

Finding the Fourth Proportional to 15,506.30, 21,399.17 and 8,792.21

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Solution

The fourth proportional to 15,506.30, 21,399.17 and 8,792.21 is: 12,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.30 : 21,399.17 = 8,792.21 : x
  2. Step 2: Convert to fraction form
    15,506.30/21,399.17 = 8,792.21/x
  3. Step 3: Cross multiply
    15,506.30x = 21,399.17 × 8,792.21
  4. Step 4: Simplify right side
    15,506.30x = 188,145,845.51
  5. Step 5: Solve for x
    x = 188,145,845.51/15,506.30
  6. Step 6: Final answer
    x = 12,133.51

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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.