Home / 8,367.51-11,559.18-6,686.72

Finding the Fourth Proportional to 8,367.51, 11,559.18 and 6,686.72

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Solution

The fourth proportional to 8,367.51, 11,559.18 and 6,686.72 is: 9,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.51 : 11,559.18 = 6,686.72 : x
  2. Step 2: Convert to fraction form
    8,367.51/11,559.18 = 6,686.72/x
  3. Step 3: Cross multiply
    8,367.51x = 11,559.18 × 6,686.72
  4. Step 4: Simplify right side
    8,367.51x = 77,292,908.86
  5. Step 5: Solve for x
    x = 77,292,908.86/8,367.51
  6. Step 6: Final answer
    x = 9,237.27

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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.