Home / 13,618.94-20,428.40-6,223.23

Finding the Fourth Proportional to 13,618.94, 20,428.40 and 6,223.23

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Solution

The fourth proportional to 13,618.94, 20,428.40 and 6,223.23 is: 9,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.94 : 20,428.40 = 6,223.23 : x
  2. Step 2: Convert to fraction form
    13,618.94/20,428.40 = 6,223.23/x
  3. Step 3: Cross multiply
    13,618.94x = 20,428.40 × 6,223.23
  4. Step 4: Simplify right side
    13,618.94x = 127,130,647.29
  5. Step 5: Solve for x
    x = 127,130,647.29/13,618.94
  6. Step 6: Final answer
    x = 9,334.85

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Similar ratio
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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.