Home / 9,489.63-13,098.47-5,512.53

Finding the Fourth Proportional to 9,489.63, 13,098.47 and 5,512.53

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Solution

The fourth proportional to 9,489.63, 13,098.47 and 5,512.53 is: 7,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.63 : 13,098.47 = 5,512.53 : x
  2. Step 2: Convert to fraction form
    9,489.63/13,098.47 = 5,512.53/x
  3. Step 3: Cross multiply
    9,489.63x = 13,098.47 × 5,512.53
  4. Step 4: Simplify right side
    9,489.63x = 72,205,708.83
  5. Step 5: Solve for x
    x = 72,205,708.83/9,489.63
  6. Step 6: Final answer
    x = 7,608.91

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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.