Home / 13,622.84-20,435.57-5,303.53

Finding the Fourth Proportional to 13,622.84, 20,435.57 and 5,303.53

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Solution

The fourth proportional to 13,622.84, 20,435.57 and 5,303.53 is: 7,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.84 : 20,435.57 = 5,303.53 : x
  2. Step 2: Convert to fraction form
    13,622.84/20,435.57 = 5,303.53/x
  3. Step 3: Cross multiply
    13,622.84x = 20,435.57 × 5,303.53
  4. Step 4: Simplify right side
    13,622.84x = 108,380,658.56
  5. Step 5: Solve for x
    x = 108,380,658.56/13,622.84
  6. Step 6: Final answer
    x = 7,955.80

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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.