Home / 13,216.09-19,809.01-5,415.25

Finding the Fourth Proportional to 13,216.09, 19,809.01 and 5,415.25

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Solution

The fourth proportional to 13,216.09, 19,809.01 and 5,415.25 is: 8,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.09 : 19,809.01 = 5,415.25 : x
  2. Step 2: Convert to fraction form
    13,216.09/19,809.01 = 5,415.25/x
  3. Step 3: Cross multiply
    13,216.09x = 19,809.01 × 5,415.25
  4. Step 4: Simplify right side
    13,216.09x = 107,270,741.40
  5. Step 5: Solve for x
    x = 107,270,741.40/13,216.09
  6. Step 6: Final answer
    x = 8,116.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.