Home / 13,041.20-19,563.60-4,719.20

Finding the Fourth Proportional to 13,041.20, 19,563.60 and 4,719.20

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Solution

The fourth proportional to 13,041.20, 19,563.60 and 4,719.20 is: 7,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.20 : 19,563.60 = 4,719.20 : x
  2. Step 2: Convert to fraction form
    13,041.20/19,563.60 = 4,719.20/x
  3. Step 3: Cross multiply
    13,041.20x = 19,563.60 × 4,719.20
  4. Step 4: Simplify right side
    13,041.20x = 92,324,541.12
  5. Step 5: Solve for x
    x = 92,324,541.12/13,041.20
  6. Step 6: Final answer
    x = 7,079.45

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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.