Home / 9,721.32-13,415.37-5,529.60

Finding the Fourth Proportional to 9,721.32, 13,415.37 and 5,529.60

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Solution

The fourth proportional to 9,721.32, 13,415.37 and 5,529.60 is: 7,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.32 : 13,415.37 = 5,529.60 : x
  2. Step 2: Convert to fraction form
    9,721.32/13,415.37 = 5,529.60/x
  3. Step 3: Cross multiply
    9,721.32x = 13,415.37 × 5,529.60
  4. Step 4: Simplify right side
    9,721.32x = 74,181,629.95
  5. Step 5: Solve for x
    x = 74,181,629.95/9,721.32
  6. Step 6: Final answer
    x = 7,630.82

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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.