Home / 13,036.49-17,990.26-7,372.36

Finding the Fourth Proportional to 13,036.49, 17,990.26 and 7,372.36

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Solution

The fourth proportional to 13,036.49, 17,990.26 and 7,372.36 is: 10,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.49 : 17,990.26 = 7,372.36 : x
  2. Step 2: Convert to fraction form
    13,036.49/17,990.26 = 7,372.36/x
  3. Step 3: Cross multiply
    13,036.49x = 17,990.26 × 7,372.36
  4. Step 4: Simplify right side
    13,036.49x = 132,630,609.81
  5. Step 5: Solve for x
    x = 132,630,609.81/13,036.49
  6. Step 6: Final answer
    x = 10,173.80

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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.