Home / 9,126.85-13,690.19-2,886.86

Finding the Fourth Proportional to 9,126.85, 13,690.19 and 2,886.86

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Solution

The fourth proportional to 9,126.85, 13,690.19 and 2,886.86 is: 4,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.85 : 13,690.19 = 2,886.86 : x
  2. Step 2: Convert to fraction form
    9,126.85/13,690.19 = 2,886.86/x
  3. Step 3: Cross multiply
    9,126.85x = 13,690.19 × 2,886.86
  4. Step 4: Simplify right side
    9,126.85x = 39,521,647.47
  5. Step 5: Solve for x
    x = 39,521,647.47/9,126.85
  6. Step 6: Final answer
    x = 4,330.26

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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.