Home / 8,686.08-13,030.20-2,840.64

Finding the Fourth Proportional to 8,686.08, 13,030.20 and 2,840.64

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Solution

The fourth proportional to 8,686.08, 13,030.20 and 2,840.64 is: 4,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.08 : 13,030.20 = 2,840.64 : x
  2. Step 2: Convert to fraction form
    8,686.08/13,030.20 = 2,840.64/x
  3. Step 3: Cross multiply
    8,686.08x = 13,030.20 × 2,840.64
  4. Step 4: Simplify right side
    8,686.08x = 37,014,107.33
  5. Step 5: Solve for x
    x = 37,014,107.33/8,686.08
  6. Step 6: Final answer
    x = 4,261.31

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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.