Home / 11,257.45-15,541.61-7,485.75

Finding the Fourth Proportional to 11,257.45, 15,541.61 and 7,485.75

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Solution

The fourth proportional to 11,257.45, 15,541.61 and 7,485.75 is: 10,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.45 : 15,541.61 = 7,485.75 : x
  2. Step 2: Convert to fraction form
    11,257.45/15,541.61 = 7,485.75/x
  3. Step 3: Cross multiply
    11,257.45x = 15,541.61 × 7,485.75
  4. Step 4: Simplify right side
    11,257.45x = 116,340,569.63
  5. Step 5: Solve for x
    x = 116,340,569.63/11,257.45
  6. Step 6: Final answer
    x = 10,334.54

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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.