Home / 15,428.53-23,143.88-7,635.25

Finding the Fourth Proportional to 15,428.53, 23,143.88 and 7,635.25

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Solution

The fourth proportional to 15,428.53, 23,143.88 and 7,635.25 is: 11,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.53 : 23,143.88 = 7,635.25 : x
  2. Step 2: Convert to fraction form
    15,428.53/23,143.88 = 7,635.25/x
  3. Step 3: Cross multiply
    15,428.53x = 23,143.88 × 7,635.25
  4. Step 4: Simplify right side
    15,428.53x = 176,709,309.77
  5. Step 5: Solve for x
    x = 176,709,309.77/15,428.53
  6. Step 6: Final answer
    x = 11,453.41

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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.