Home / 7,911.83-10,918.98-4,555.73

Finding the Fourth Proportional to 7,911.83, 10,918.98 and 4,555.73

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Solution

The fourth proportional to 7,911.83, 10,918.98 and 4,555.73 is: 6,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.83 : 10,918.98 = 4,555.73 : x
  2. Step 2: Convert to fraction form
    7,911.83/10,918.98 = 4,555.73/x
  3. Step 3: Cross multiply
    7,911.83x = 10,918.98 × 4,555.73
  4. Step 4: Simplify right side
    7,911.83x = 49,743,870.16
  5. Step 5: Solve for x
    x = 49,743,870.16/7,911.83
  6. Step 6: Final answer
    x = 6,287.28

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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.