Home / 9,509.06-13,121.49-5,259.44

Finding the Fourth Proportional to 9,509.06, 13,121.49 and 5,259.44

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Solution

The fourth proportional to 9,509.06, 13,121.49 and 5,259.44 is: 7,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.06 : 13,121.49 = 5,259.44 : x
  2. Step 2: Convert to fraction form
    9,509.06/13,121.49 = 5,259.44/x
  3. Step 3: Cross multiply
    9,509.06x = 13,121.49 × 5,259.44
  4. Step 4: Simplify right side
    9,509.06x = 69,011,689.37
  5. Step 5: Solve for x
    x = 69,011,689.37/9,509.06
  6. Step 6: Final answer
    x = 7,257.47

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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.