Home / 11,436.46-15,782.36-6,401.50

Finding the Fourth Proportional to 11,436.46, 15,782.36 and 6,401.50

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Solution

The fourth proportional to 11,436.46, 15,782.36 and 6,401.50 is: 8,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.46 : 15,782.36 = 6,401.50 : x
  2. Step 2: Convert to fraction form
    11,436.46/15,782.36 = 6,401.50/x
  3. Step 3: Cross multiply
    11,436.46x = 15,782.36 × 6,401.50
  4. Step 4: Simplify right side
    11,436.46x = 101,030,706.08
  5. Step 5: Solve for x
    x = 101,030,706.08/11,436.46
  6. Step 6: Final answer
    x = 8,834.09

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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.