Home / 9,989.32-13,785.25-5,513.07

Finding the Fourth Proportional to 9,989.32, 13,785.25 and 5,513.07

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Solution

The fourth proportional to 9,989.32, 13,785.25 and 5,513.07 is: 7,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.32 : 13,785.25 = 5,513.07 : x
  2. Step 2: Convert to fraction form
    9,989.32/13,785.25 = 5,513.07/x
  3. Step 3: Cross multiply
    9,989.32x = 13,785.25 × 5,513.07
  4. Step 4: Simplify right side
    9,989.32x = 75,999,048.22
  5. Step 5: Solve for x
    x = 75,999,048.22/9,989.32
  6. Step 6: Final answer
    x = 7,608.03

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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.