Home / 14,707.49-20,295.83-8,418.65

Finding the Fourth Proportional to 14,707.49, 20,295.83 and 8,418.65

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Solution

The fourth proportional to 14,707.49, 20,295.83 and 8,418.65 is: 11,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.49 : 20,295.83 = 8,418.65 : x
  2. Step 2: Convert to fraction form
    14,707.49/20,295.83 = 8,418.65/x
  3. Step 3: Cross multiply
    14,707.49x = 20,295.83 × 8,418.65
  4. Step 4: Simplify right side
    14,707.49x = 170,863,408.80
  5. Step 5: Solve for x
    x = 170,863,408.80/14,707.49
  6. Step 6: Final answer
    x = 11,617.45

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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.