Home / 12,280.55-16,947.55-6,975.05

Finding the Fourth Proportional to 12,280.55, 16,947.55 and 6,975.05

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Solution

The fourth proportional to 12,280.55, 16,947.55 and 6,975.05 is: 9,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.55 : 16,947.55 = 6,975.05 : x
  2. Step 2: Convert to fraction form
    12,280.55/16,947.55 = 6,975.05/x
  3. Step 3: Cross multiply
    12,280.55x = 16,947.55 × 6,975.05
  4. Step 4: Simplify right side
    12,280.55x = 118,210,059.72
  5. Step 5: Solve for x
    x = 118,210,059.72/12,280.55
  6. Step 6: Final answer
    x = 9,625.79

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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.