Home / 15,541.37-21,451.72-11,078.06

Finding the Fourth Proportional to 15,541.37, 21,451.72 and 11,078.06

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Solution

The fourth proportional to 15,541.37, 21,451.72 and 11,078.06 is: 15,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.37 : 21,451.72 = 11,078.06 : x
  2. Step 2: Convert to fraction form
    15,541.37/21,451.72 = 11,078.06/x
  3. Step 3: Cross multiply
    15,541.37x = 21,451.72 × 11,078.06
  4. Step 4: Simplify right side
    15,541.37x = 237,643,441.26
  5. Step 5: Solve for x
    x = 237,643,441.26/15,541.37
  6. Step 6: Final answer
    x = 15,291.03

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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.