Home / 8,686.08-11,986.37-5,100.55

Finding the Fourth Proportional to 8,686.08, 11,986.37 and 5,100.55

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Solution

The fourth proportional to 8,686.08, 11,986.37 and 5,100.55 is: 7,038.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.08 : 11,986.37 = 5,100.55 : x
  2. Step 2: Convert to fraction form
    8,686.08/11,986.37 = 5,100.55/x
  3. Step 3: Cross multiply
    8,686.08x = 11,986.37 × 5,100.55
  4. Step 4: Simplify right side
    8,686.08x = 61,137,079.50
  5. Step 5: Solve for x
    x = 61,137,079.50/8,686.08
  6. Step 6: Final answer
    x = 7,038.51

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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.