Home / 13,947.81-19,247.97-7,574.37

Finding the Fourth Proportional to 13,947.81, 19,247.97 and 7,574.37

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Solution

The fourth proportional to 13,947.81, 19,247.97 and 7,574.37 is: 10,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.81 : 19,247.97 = 7,574.37 : x
  2. Step 2: Convert to fraction form
    13,947.81/19,247.97 = 7,574.37/x
  3. Step 3: Cross multiply
    13,947.81x = 19,247.97 × 7,574.37
  4. Step 4: Simplify right side
    13,947.81x = 145,791,246.53
  5. Step 5: Solve for x
    x = 145,791,246.53/13,947.81
  6. Step 6: Final answer
    x = 10,452.63

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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.