Home / 13,918.84-20,868.32-6,519.24

Finding the Fourth Proportional to 13,918.84, 20,868.32 and 6,519.24

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Solution

The fourth proportional to 13,918.84, 20,868.32 and 6,519.24 is: 9,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.84 : 20,868.32 = 6,519.24 : x
  2. Step 2: Convert to fraction form
    13,918.84/20,868.32 = 6,519.24/x
  3. Step 3: Cross multiply
    13,918.84x = 20,868.32 × 6,519.24
  4. Step 4: Simplify right side
    13,918.84x = 136,045,586.48
  5. Step 5: Solve for x
    x = 136,045,586.48/13,918.84
  6. Step 6: Final answer
    x = 9,774.20

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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.