Home / 7,477.71-10,318.77-4,491.78

Finding the Fourth Proportional to 7,477.71, 10,318.77 and 4,491.78

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Solution

The fourth proportional to 7,477.71, 10,318.77 and 4,491.78 is: 6,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.71 : 10,318.77 = 4,491.78 : x
  2. Step 2: Convert to fraction form
    7,477.71/10,318.77 = 4,491.78/x
  3. Step 3: Cross multiply
    7,477.71x = 10,318.77 × 4,491.78
  4. Step 4: Simplify right side
    7,477.71x = 46,349,644.71
  5. Step 5: Solve for x
    x = 46,349,644.71/7,477.71
  6. Step 6: Final answer
    x = 6,198.37

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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.