Home / 13,619.51-20,431.08-6,226.23

Finding the Fourth Proportional to 13,619.51, 20,431.08 and 6,226.23

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Solution

The fourth proportional to 13,619.51, 20,431.08 and 6,226.23 is: 9,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.51 : 20,431.08 = 6,226.23 : x
  2. Step 2: Convert to fraction form
    13,619.51/20,431.08 = 6,226.23/x
  3. Step 3: Cross multiply
    13,619.51x = 20,431.08 × 6,226.23
  4. Step 4: Simplify right side
    13,619.51x = 127,208,603.23
  5. Step 5: Solve for x
    x = 127,208,603.23/13,619.51
  6. Step 6: Final answer
    x = 9,340.18

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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.