Home / 10,921.74-15,072.39-6,206.46

Finding the Fourth Proportional to 10,921.74, 15,072.39 and 6,206.46

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Solution

The fourth proportional to 10,921.74, 15,072.39 and 6,206.46 is: 8,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.74 : 15,072.39 = 6,206.46 : x
  2. Step 2: Convert to fraction form
    10,921.74/15,072.39 = 6,206.46/x
  3. Step 3: Cross multiply
    10,921.74x = 15,072.39 × 6,206.46
  4. Step 4: Simplify right side
    10,921.74x = 93,546,185.64
  5. Step 5: Solve for x
    x = 93,546,185.64/10,921.74
  6. Step 6: Final answer
    x = 8,565.14

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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.