Home / 13,200.90-19,797.68-5,303.40

Finding the Fourth Proportional to 13,200.90, 19,797.68 and 5,303.40

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Solution

The fourth proportional to 13,200.90, 19,797.68 and 5,303.40 is: 7,953.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.90 : 19,797.68 = 5,303.40 : x
  2. Step 2: Convert to fraction form
    13,200.90/19,797.68 = 5,303.40/x
  3. Step 3: Cross multiply
    13,200.90x = 19,797.68 × 5,303.40
  4. Step 4: Simplify right side
    13,200.90x = 104,995,016.11
  5. Step 5: Solve for x
    x = 104,995,016.11/13,200.90
  6. Step 6: Final answer
    x = 7,953.63

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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.