Home / 7,255.12-10,011.48-4,111.60

Finding the Fourth Proportional to 7,255.12, 10,011.48 and 4,111.60

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Solution

The fourth proportional to 7,255.12, 10,011.48 and 4,111.60 is: 5,673.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.12 : 10,011.48 = 4,111.60 : x
  2. Step 2: Convert to fraction form
    7,255.12/10,011.48 = 4,111.60/x
  3. Step 3: Cross multiply
    7,255.12x = 10,011.48 × 4,111.60
  4. Step 4: Simplify right side
    7,255.12x = 41,163,201.17
  5. Step 5: Solve for x
    x = 41,163,201.17/7,255.12
  6. Step 6: Final answer
    x = 5,673.68

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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.