Home / 13,089.29-19,622.31-4,767.76

Finding the Fourth Proportional to 13,089.29, 19,622.31 and 4,767.76

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Solution

The fourth proportional to 13,089.29, 19,622.31 and 4,767.76 is: 7,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.29 : 19,622.31 = 4,767.76 : x
  2. Step 2: Convert to fraction form
    13,089.29/19,622.31 = 4,767.76/x
  3. Step 3: Cross multiply
    13,089.29x = 19,622.31 × 4,767.76
  4. Step 4: Simplify right side
    13,089.29x = 93,554,342.78
  5. Step 5: Solve for x
    x = 93,554,342.78/13,089.29
  6. Step 6: Final answer
    x = 7,147.40

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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.