Home / 14,221.85-21,328.14-6,724.67

Finding the Fourth Proportional to 14,221.85, 21,328.14 and 6,724.67

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Solution

The fourth proportional to 14,221.85, 21,328.14 and 6,724.67 is: 10,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.85 : 21,328.14 = 6,724.67 : x
  2. Step 2: Convert to fraction form
    14,221.85/21,328.14 = 6,724.67/x
  3. Step 3: Cross multiply
    14,221.85x = 21,328.14 × 6,724.67
  4. Step 4: Simplify right side
    14,221.85x = 143,424,703.21
  5. Step 5: Solve for x
    x = 143,424,703.21/14,221.85
  6. Step 6: Final answer
    x = 10,084.81

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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.