Home / 7,809.11-10,776.63-4,272.38

Finding the Fourth Proportional to 7,809.11, 10,776.63 and 4,272.38

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Solution

The fourth proportional to 7,809.11, 10,776.63 and 4,272.38 is: 5,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.11 : 10,776.63 = 4,272.38 : x
  2. Step 2: Convert to fraction form
    7,809.11/10,776.63 = 4,272.38/x
  3. Step 3: Cross multiply
    7,809.11x = 10,776.63 × 4,272.38
  4. Step 4: Simplify right side
    7,809.11x = 46,041,858.48
  5. Step 5: Solve for x
    x = 46,041,858.48/7,809.11
  6. Step 6: Final answer
    x = 5,895.92

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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.