Home / 14,424.14-21,638.57-4,428.63

Finding the Fourth Proportional to 14,424.14, 21,638.57 and 4,428.63

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Solution

The fourth proportional to 14,424.14, 21,638.57 and 4,428.63 is: 6,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.14 : 21,638.57 = 4,428.63 : x
  2. Step 2: Convert to fraction form
    14,424.14/21,638.57 = 4,428.63/x
  3. Step 3: Cross multiply
    14,424.14x = 21,638.57 × 4,428.63
  4. Step 4: Simplify right side
    14,424.14x = 95,829,198.12
  5. Step 5: Solve for x
    x = 95,829,198.12/14,424.14
  6. Step 6: Final answer
    x = 6,643.67

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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.