Home / 9,220.77-12,725.74-5,242.48

Finding the Fourth Proportional to 9,220.77, 12,725.74 and 5,242.48

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Solution

The fourth proportional to 9,220.77, 12,725.74 and 5,242.48 is: 7,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.77 : 12,725.74 = 5,242.48 : x
  2. Step 2: Convert to fraction form
    9,220.77/12,725.74 = 5,242.48/x
  3. Step 3: Cross multiply
    9,220.77x = 12,725.74 × 5,242.48
  4. Step 4: Simplify right side
    9,220.77x = 66,714,437.44
  5. Step 5: Solve for x
    x = 66,714,437.44/9,220.77
  6. Step 6: Final answer
    x = 7,235.23

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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.