Home / 15,474.65-21,355.31-8,760.29

Finding the Fourth Proportional to 15,474.65, 21,355.31 and 8,760.29

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Solution

The fourth proportional to 15,474.65, 21,355.31 and 8,760.29 is: 12,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.65 : 21,355.31 = 8,760.29 : x
  2. Step 2: Convert to fraction form
    15,474.65/21,355.31 = 8,760.29/x
  3. Step 3: Cross multiply
    15,474.65x = 21,355.31 × 8,760.29
  4. Step 4: Simplify right side
    15,474.65x = 187,078,623.76
  5. Step 5: Solve for x
    x = 187,078,623.76/15,474.65
  6. Step 6: Final answer
    x = 12,089.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.