Home / 13,203.41-18,220.70-7,235.31

Finding the Fourth Proportional to 13,203.41, 18,220.70 and 7,235.31

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Solution

The fourth proportional to 13,203.41, 18,220.70 and 7,235.31 is: 9,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.41 : 18,220.70 = 7,235.31 : x
  2. Step 2: Convert to fraction form
    13,203.41/18,220.70 = 7,235.31/x
  3. Step 3: Cross multiply
    13,203.41x = 18,220.70 × 7,235.31
  4. Step 4: Simplify right side
    13,203.41x = 131,832,412.92
  5. Step 5: Solve for x
    x = 131,832,412.92/13,203.41
  6. Step 6: Final answer
    x = 9,984.72

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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.