Home / 9,917.73-13,686.60-5,441.40

Finding the Fourth Proportional to 9,917.73, 13,686.60 and 5,441.40

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Solution

The fourth proportional to 9,917.73, 13,686.60 and 5,441.40 is: 7,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.73 : 13,686.60 = 5,441.40 : x
  2. Step 2: Convert to fraction form
    9,917.73/13,686.60 = 5,441.40/x
  3. Step 3: Cross multiply
    9,917.73x = 13,686.60 × 5,441.40
  4. Step 4: Simplify right side
    9,917.73x = 74,474,265.24
  5. Step 5: Solve for x
    x = 74,474,265.24/9,917.73
  6. Step 6: Final answer
    x = 7,509.20

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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.