Home / 15,369.32-21,209.09-8,563.18

Finding the Fourth Proportional to 15,369.32, 21,209.09 and 8,563.18

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Solution

The fourth proportional to 15,369.32, 21,209.09 and 8,563.18 is: 11,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.32 : 21,209.09 = 8,563.18 : x
  2. Step 2: Convert to fraction form
    15,369.32/21,209.09 = 8,563.18/x
  3. Step 3: Cross multiply
    15,369.32x = 21,209.09 × 8,563.18
  4. Step 4: Simplify right side
    15,369.32x = 181,617,255.31
  5. Step 5: Solve for x
    x = 181,617,255.31/15,369.32
  6. Step 6: Final answer
    x = 11,816.87

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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.