Home / 13,612.58-20,419.63-4,847.49

Finding the Fourth Proportional to 13,612.58, 20,419.63 and 4,847.49

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Solution

The fourth proportional to 13,612.58, 20,419.63 and 4,847.49 is: 7,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.58 : 20,419.63 = 4,847.49 : x
  2. Step 2: Convert to fraction form
    13,612.58/20,419.63 = 4,847.49/x
  3. Step 3: Cross multiply
    13,612.58x = 20,419.63 × 4,847.49
  4. Step 4: Simplify right side
    13,612.58x = 98,984,005.66
  5. Step 5: Solve for x
    x = 98,984,005.66/13,612.58
  6. Step 6: Final answer
    x = 7,271.51

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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.