Home / 7,769.39-10,721.34-4,412.12

Finding the Fourth Proportional to 7,769.39, 10,721.34 and 4,412.12

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Solution

The fourth proportional to 7,769.39, 10,721.34 and 4,412.12 is: 6,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.39 : 10,721.34 = 4,412.12 : x
  2. Step 2: Convert to fraction form
    7,769.39/10,721.34 = 4,412.12/x
  3. Step 3: Cross multiply
    7,769.39x = 10,721.34 × 4,412.12
  4. Step 4: Simplify right side
    7,769.39x = 47,303,785.03
  5. Step 5: Solve for x
    x = 47,303,785.03/7,769.39
  6. Step 6: Final answer
    x = 6,088.49

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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.