Home / 13,271.80-19,905.52-4,949.64

Finding the Fourth Proportional to 13,271.80, 19,905.52 and 4,949.64

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Solution

The fourth proportional to 13,271.80, 19,905.52 and 4,949.64 is: 7,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.80 : 19,905.52 = 4,949.64 : x
  2. Step 2: Convert to fraction form
    13,271.80/19,905.52 = 4,949.64/x
  3. Step 3: Cross multiply
    13,271.80x = 19,905.52 × 4,949.64
  4. Step 4: Simplify right side
    13,271.80x = 98,525,158.01
  5. Step 5: Solve for x
    x = 98,525,158.01/13,271.80
  6. Step 6: Final answer
    x = 7,423.65

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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.