Home / 13,778.59-19,014.74-7,491.37

Finding the Fourth Proportional to 13,778.59, 19,014.74 and 7,491.37

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Solution

The fourth proportional to 13,778.59, 19,014.74 and 7,491.37 is: 10,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.59 : 19,014.74 = 7,491.37 : x
  2. Step 2: Convert to fraction form
    13,778.59/19,014.74 = 7,491.37/x
  3. Step 3: Cross multiply
    13,778.59x = 19,014.74 × 7,491.37
  4. Step 4: Simplify right side
    13,778.59x = 142,446,452.79
  5. Step 5: Solve for x
    x = 142,446,452.79/13,778.59
  6. Step 6: Final answer
    x = 10,338.25

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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.