Home / 9,921.52-13,685.40-6,091.48

Finding the Fourth Proportional to 9,921.52, 13,685.40 and 6,091.48

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Solution

The fourth proportional to 9,921.52, 13,685.40 and 6,091.48 is: 8,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.52 : 13,685.40 = 6,091.48 : x
  2. Step 2: Convert to fraction form
    9,921.52/13,685.40 = 6,091.48/x
  3. Step 3: Cross multiply
    9,921.52x = 13,685.40 × 6,091.48
  4. Step 4: Simplify right side
    9,921.52x = 83,364,340.39
  5. Step 5: Solve for x
    x = 83,364,340.39/9,921.52
  6. Step 6: Final answer
    x = 8,402.38

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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.