Home / 9,993.51-15,015.78-7,551.36

Finding the Fourth Proportional to 9,993.51, 15,015.78 and 7,551.36

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Solution

The fourth proportional to 9,993.51, 15,015.78 and 7,551.36 is: 11,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.51 : 15,015.78 = 7,551.36 : x
  2. Step 2: Convert to fraction form
    9,993.51/15,015.78 = 7,551.36/x
  3. Step 3: Cross multiply
    9,993.51x = 15,015.78 × 7,551.36
  4. Step 4: Simplify right side
    9,993.51x = 113,389,560.46
  5. Step 5: Solve for x
    x = 113,389,560.46/9,993.51
  6. Step 6: Final answer
    x = 11,346.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.