Home / 7,407.52-10,216.68-5,168.68

Finding the Fourth Proportional to 7,407.52, 10,216.68 and 5,168.68

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Solution

The fourth proportional to 7,407.52, 10,216.68 and 5,168.68 is: 7,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.52 : 10,216.68 = 5,168.68 : x
  2. Step 2: Convert to fraction form
    7,407.52/10,216.68 = 5,168.68/x
  3. Step 3: Cross multiply
    7,407.52x = 10,216.68 × 5,168.68
  4. Step 4: Simplify right side
    7,407.52x = 52,806,749.58
  5. Step 5: Solve for x
    x = 52,806,749.58/7,407.52
  6. Step 6: Final answer
    x = 7,128.80

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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.