Home / 8,518.29-11,751.21-5,686.98

Finding the Fourth Proportional to 8,518.29, 11,751.21 and 5,686.98

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Solution

The fourth proportional to 8,518.29, 11,751.21 and 5,686.98 is: 7,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.29 : 11,751.21 = 5,686.98 : x
  2. Step 2: Convert to fraction form
    8,518.29/11,751.21 = 5,686.98/x
  3. Step 3: Cross multiply
    8,518.29x = 11,751.21 × 5,686.98
  4. Step 4: Simplify right side
    8,518.29x = 66,828,896.25
  5. Step 5: Solve for x
    x = 66,828,896.25/8,518.29
  6. Step 6: Final answer
    x = 7,845.34

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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.