Home / 15,141.36-20,895.56-9,474.28

Finding the Fourth Proportional to 15,141.36, 20,895.56 and 9,474.28

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Solution

The fourth proportional to 15,141.36, 20,895.56 and 9,474.28 is: 13,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.36 : 20,895.56 = 9,474.28 : x
  2. Step 2: Convert to fraction form
    15,141.36/20,895.56 = 9,474.28/x
  3. Step 3: Cross multiply
    15,141.36x = 20,895.56 × 9,474.28
  4. Step 4: Simplify right side
    15,141.36x = 197,970,386.20
  5. Step 5: Solve for x
    x = 197,970,386.20/15,141.36
  6. Step 6: Final answer
    x = 13,074.81

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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.