Home / 13,377.91-18,460.81-7,409.22

Finding the Fourth Proportional to 13,377.91, 18,460.81 and 7,409.22

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Solution

The fourth proportional to 13,377.91, 18,460.81 and 7,409.22 is: 10,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.91 : 18,460.81 = 7,409.22 : x
  2. Step 2: Convert to fraction form
    13,377.91/18,460.81 = 7,409.22/x
  3. Step 3: Cross multiply
    13,377.91x = 18,460.81 × 7,409.22
  4. Step 4: Simplify right side
    13,377.91x = 136,780,246.54
  5. Step 5: Solve for x
    x = 136,780,246.54/13,377.91
  6. Step 6: Final answer
    x = 10,224.34

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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.