Home / 8,055.45-11,113.20-4,911.30

Finding the Fourth Proportional to 8,055.45, 11,113.20 and 4,911.30

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Solution

The fourth proportional to 8,055.45, 11,113.20 and 4,911.30 is: 6,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.45 : 11,113.20 = 4,911.30 : x
  2. Step 2: Convert to fraction form
    8,055.45/11,113.20 = 4,911.30/x
  3. Step 3: Cross multiply
    8,055.45x = 11,113.20 × 4,911.30
  4. Step 4: Simplify right side
    8,055.45x = 54,580,259.16
  5. Step 5: Solve for x
    x = 54,580,259.16/8,055.45
  6. Step 6: Final answer
    x = 6,775.57

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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.