Home / 14,236.81-21,368.24-7,221.67

Finding the Fourth Proportional to 14,236.81, 21,368.24 and 7,221.67

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Solution

The fourth proportional to 14,236.81, 21,368.24 and 7,221.67 is: 10,839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,236.81 : 21,368.24 = 7,221.67 : x
  2. Step 2: Convert to fraction form
    14,236.81/21,368.24 = 7,221.67/x
  3. Step 3: Cross multiply
    14,236.81x = 21,368.24 × 7,221.67
  4. Step 4: Simplify right side
    14,236.81x = 154,314,377.76
  5. Step 5: Solve for x
    x = 154,314,377.76/14,236.81
  6. Step 6: Final answer
    x = 10,839.11

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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.