Home / 9,917.90-13,686.24-5,441.54

Finding the Fourth Proportional to 9,917.90, 13,686.24 and 5,441.54

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Solution

The fourth proportional to 9,917.90, 13,686.24 and 5,441.54 is: 7,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.90 : 13,686.24 = 5,441.54 : x
  2. Step 2: Convert to fraction form
    9,917.90/13,686.24 = 5,441.54/x
  3. Step 3: Cross multiply
    9,917.90x = 13,686.24 × 5,441.54
  4. Step 4: Simplify right side
    9,917.90x = 74,474,222.41
  5. Step 5: Solve for x
    x = 74,474,222.41/9,917.90
  6. Step 6: Final answer
    x = 7,509.07

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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.