Home / 13,315.42-19,973.13-4,550.41

Finding the Fourth Proportional to 13,315.42, 19,973.13 and 4,550.41

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Solution

The fourth proportional to 13,315.42, 19,973.13 and 4,550.41 is: 6,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.42 : 19,973.13 = 4,550.41 : x
  2. Step 2: Convert to fraction form
    13,315.42/19,973.13 = 4,550.41/x
  3. Step 3: Cross multiply
    13,315.42x = 19,973.13 × 4,550.41
  4. Step 4: Simplify right side
    13,315.42x = 90,885,880.55
  5. Step 5: Solve for x
    x = 90,885,880.55/13,315.42
  6. Step 6: Final answer
    x = 6,825.61

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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.