Home / 12,470.61-18,705.75-3,586.16

Finding the Fourth Proportional to 12,470.61, 18,705.75 and 3,586.16

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Solution

The fourth proportional to 12,470.61, 18,705.75 and 3,586.16 is: 5,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.61 : 18,705.75 = 3,586.16 : x
  2. Step 2: Convert to fraction form
    12,470.61/18,705.75 = 3,586.16/x
  3. Step 3: Cross multiply
    12,470.61x = 18,705.75 × 3,586.16
  4. Step 4: Simplify right side
    12,470.61x = 67,081,718.89
  5. Step 5: Solve for x
    x = 67,081,718.89/12,470.61
  6. Step 6: Final answer
    x = 5,379.19

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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.