Home / 13,435.26-18,542.70-9,670.89

Finding the Fourth Proportional to 13,435.26, 18,542.70 and 9,670.89

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Solution

The fourth proportional to 13,435.26, 18,542.70 and 9,670.89 is: 13,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.26 : 18,542.70 = 9,670.89 : x
  2. Step 2: Convert to fraction form
    13,435.26/18,542.70 = 9,670.89/x
  3. Step 3: Cross multiply
    13,435.26x = 18,542.70 × 9,670.89
  4. Step 4: Simplify right side
    13,435.26x = 179,324,412.00
  5. Step 5: Solve for x
    x = 179,324,412.00/13,435.26
  6. Step 6: Final answer
    x = 13,347.30

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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.