Home / 11,242.74-16,860.47-5,318.71

Finding the Fourth Proportional to 11,242.74, 16,860.47 and 5,318.71

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Solution

The fourth proportional to 11,242.74, 16,860.47 and 5,318.71 is: 7,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.74 : 16,860.47 = 5,318.71 : x
  2. Step 2: Convert to fraction form
    11,242.74/16,860.47 = 5,318.71/x
  3. Step 3: Cross multiply
    11,242.74x = 16,860.47 × 5,318.71
  4. Step 4: Simplify right side
    11,242.74x = 89,675,881.65
  5. Step 5: Solve for x
    x = 89,675,881.65/11,242.74
  6. Step 6: Final answer
    x = 7,976.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.