Home / 9,720.94-13,415.58-5,472.41

Finding the Fourth Proportional to 9,720.94, 13,415.58 and 5,472.41

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Solution

The fourth proportional to 9,720.94, 13,415.58 and 5,472.41 is: 7,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.94 : 13,415.58 = 5,472.41 : x
  2. Step 2: Convert to fraction form
    9,720.94/13,415.58 = 5,472.41/x
  3. Step 3: Cross multiply
    9,720.94x = 13,415.58 × 5,472.41
  4. Step 4: Simplify right side
    9,720.94x = 73,415,554.15
  5. Step 5: Solve for x
    x = 73,415,554.15/9,720.94
  6. Step 6: Final answer
    x = 7,552.31

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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.