Home / 13,698.79-20,547.81-3,704.51

Finding the Fourth Proportional to 13,698.79, 20,547.81 and 3,704.51

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Solution

The fourth proportional to 13,698.79, 20,547.81 and 3,704.51 is: 5,556.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.79 : 20,547.81 = 3,704.51 : x
  2. Step 2: Convert to fraction form
    13,698.79/20,547.81 = 3,704.51/x
  3. Step 3: Cross multiply
    13,698.79x = 20,547.81 × 3,704.51
  4. Step 4: Simplify right side
    13,698.79x = 76,119,446.36
  5. Step 5: Solve for x
    x = 76,119,446.36/13,698.79
  6. Step 6: Final answer
    x = 5,556.65

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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.