Home / 13,488.08-20,228.16-4,721.36

Finding the Fourth Proportional to 13,488.08, 20,228.16 and 4,721.36

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Solution

The fourth proportional to 13,488.08, 20,228.16 and 4,721.36 is: 7,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.08 : 20,228.16 = 4,721.36 : x
  2. Step 2: Convert to fraction form
    13,488.08/20,228.16 = 4,721.36/x
  3. Step 3: Cross multiply
    13,488.08x = 20,228.16 × 4,721.36
  4. Step 4: Simplify right side
    13,488.08x = 95,504,425.50
  5. Step 5: Solve for x
    x = 95,504,425.50/13,488.08
  6. Step 6: Final answer
    x = 7,080.65

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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.