Home / 9,219.51-12,722.54-5,240.97

Finding the Fourth Proportional to 9,219.51, 12,722.54 and 5,240.97

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Solution

The fourth proportional to 9,219.51, 12,722.54 and 5,240.97 is: 7,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.51 : 12,722.54 = 5,240.97 : x
  2. Step 2: Convert to fraction form
    9,219.51/12,722.54 = 5,240.97/x
  3. Step 3: Cross multiply
    9,219.51x = 12,722.54 × 5,240.97
  4. Step 4: Simplify right side
    9,219.51x = 66,678,424.26
  5. Step 5: Solve for x
    x = 66,678,424.26/9,219.51
  6. Step 6: Final answer
    x = 7,232.32

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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.