Home / 9,512.76-13,128.06-5,320.68

Finding the Fourth Proportional to 9,512.76, 13,128.06 and 5,320.68

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Solution

The fourth proportional to 9,512.76, 13,128.06 and 5,320.68 is: 7,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,512.76 : 13,128.06 = 5,320.68 : x
  2. Step 2: Convert to fraction form
    9,512.76/13,128.06 = 5,320.68/x
  3. Step 3: Cross multiply
    9,512.76x = 13,128.06 × 5,320.68
  4. Step 4: Simplify right side
    9,512.76x = 69,850,206.28
  5. Step 5: Solve for x
    x = 69,850,206.28/9,512.76
  6. Step 6: Final answer
    x = 7,342.79

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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.