Home / 7,240.56-9,993.93-4,257.36

Finding the Fourth Proportional to 7,240.56, 9,993.93 and 4,257.36

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Solution

The fourth proportional to 7,240.56, 9,993.93 and 4,257.36 is: 5,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.56 : 9,993.93 = 4,257.36 : x
  2. Step 2: Convert to fraction form
    7,240.56/9,993.93 = 4,257.36/x
  3. Step 3: Cross multiply
    7,240.56x = 9,993.93 × 4,257.36
  4. Step 4: Simplify right side
    7,240.56x = 42,547,757.82
  5. Step 5: Solve for x
    x = 42,547,757.82/7,240.56
  6. Step 6: Final answer
    x = 5,876.31

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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.