Home / 7,805.12-10,769.81-4,821.93

Finding the Fourth Proportional to 7,805.12, 10,769.81 and 4,821.93

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Solution

The fourth proportional to 7,805.12, 10,769.81 and 4,821.93 is: 6,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.12 : 10,769.81 = 4,821.93 : x
  2. Step 2: Convert to fraction form
    7,805.12/10,769.81 = 4,821.93/x
  3. Step 3: Cross multiply
    7,805.12x = 10,769.81 × 4,821.93
  4. Step 4: Simplify right side
    7,805.12x = 51,931,245.82
  5. Step 5: Solve for x
    x = 51,931,245.82/7,805.12
  6. Step 6: Final answer
    x = 6,653.49

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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.