Home / 13,257.36-18,295.24-7,289.08

Finding the Fourth Proportional to 13,257.36, 18,295.24 and 7,289.08

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Solution

The fourth proportional to 13,257.36, 18,295.24 and 7,289.08 is: 10,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.36 : 18,295.24 = 7,289.08 : x
  2. Step 2: Convert to fraction form
    13,257.36/18,295.24 = 7,289.08/x
  3. Step 3: Cross multiply
    13,257.36x = 18,295.24 × 7,289.08
  4. Step 4: Simplify right side
    13,257.36x = 133,355,404.02
  5. Step 5: Solve for x
    x = 133,355,404.02/13,257.36
  6. Step 6: Final answer
    x = 10,058.97

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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.