Home / 8,426.90-11,627.34-4,889.66

Finding the Fourth Proportional to 8,426.90, 11,627.34 and 4,889.66

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Solution

The fourth proportional to 8,426.90, 11,627.34 and 4,889.66 is: 6,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.90 : 11,627.34 = 4,889.66 : x
  2. Step 2: Convert to fraction form
    8,426.90/11,627.34 = 4,889.66/x
  3. Step 3: Cross multiply
    8,426.90x = 11,627.34 × 4,889.66
  4. Step 4: Simplify right side
    8,426.90x = 56,853,739.30
  5. Step 5: Solve for x
    x = 56,853,739.30/8,426.90
  6. Step 6: Final answer
    x = 6,746.70

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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.