Home / 15,533.56-21,429.66-9,563.05

Finding the Fourth Proportional to 15,533.56, 21,429.66 and 9,563.05

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Solution

The fourth proportional to 15,533.56, 21,429.66 and 9,563.05 is: 13,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.56 : 21,429.66 = 9,563.05 : x
  2. Step 2: Convert to fraction form
    15,533.56/21,429.66 = 9,563.05/x
  3. Step 3: Cross multiply
    15,533.56x = 21,429.66 × 9,563.05
  4. Step 4: Simplify right side
    15,533.56x = 204,932,910.06
  5. Step 5: Solve for x
    x = 204,932,910.06/15,533.56
  6. Step 6: Final answer
    x = 13,192.91

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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.