Home / 13,200.05-19,800.34-4,315.41

Finding the Fourth Proportional to 13,200.05, 19,800.34 and 4,315.41

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Solution

The fourth proportional to 13,200.05, 19,800.34 and 4,315.41 is: 6,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.05 : 19,800.34 = 4,315.41 : x
  2. Step 2: Convert to fraction form
    13,200.05/19,800.34 = 4,315.41/x
  3. Step 3: Cross multiply
    13,200.05x = 19,800.34 × 4,315.41
  4. Step 4: Simplify right side
    13,200.05x = 85,446,574.45
  5. Step 5: Solve for x
    x = 85,446,574.45/13,200.05
  6. Step 6: Final answer
    x = 6,473.20

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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.