Home / 13,539.54-20,307.21-5,223.45

Finding the Fourth Proportional to 13,539.54, 20,307.21 and 5,223.45

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Solution

The fourth proportional to 13,539.54, 20,307.21 and 5,223.45 is: 7,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.54 : 20,307.21 = 5,223.45 : x
  2. Step 2: Convert to fraction form
    13,539.54/20,307.21 = 5,223.45/x
  3. Step 3: Cross multiply
    13,539.54x = 20,307.21 × 5,223.45
  4. Step 4: Simplify right side
    13,539.54x = 106,073,696.07
  5. Step 5: Solve for x
    x = 106,073,696.07/13,539.54
  6. Step 6: Final answer
    x = 7,834.36

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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.