Home / 8,280.85-11,427.86-4,744.74

Finding the Fourth Proportional to 8,280.85, 11,427.86 and 4,744.74

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Solution

The fourth proportional to 8,280.85, 11,427.86 and 4,744.74 is: 6,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.85 : 11,427.86 = 4,744.74 : x
  2. Step 2: Convert to fraction form
    8,280.85/11,427.86 = 4,744.74/x
  3. Step 3: Cross multiply
    8,280.85x = 11,427.86 × 4,744.74
  4. Step 4: Simplify right side
    8,280.85x = 54,222,200.73
  5. Step 5: Solve for x
    x = 54,222,200.73/8,280.85
  6. Step 6: Final answer
    x = 6,547.91

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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.