Home / 9,705.48-14,555.70-2,778.36

Finding the Fourth Proportional to 9,705.48, 14,555.70 and 2,778.36

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Solution

The fourth proportional to 9,705.48, 14,555.70 and 2,778.36 is: 4,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.48 : 14,555.70 = 2,778.36 : x
  2. Step 2: Convert to fraction form
    9,705.48/14,555.70 = 2,778.36/x
  3. Step 3: Cross multiply
    9,705.48x = 14,555.70 × 2,778.36
  4. Step 4: Simplify right side
    9,705.48x = 40,440,974.65
  5. Step 5: Solve for x
    x = 40,440,974.65/9,705.48
  6. Step 6: Final answer
    x = 4,166.82

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1.5x scale

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.