Home / 11,280.40-15,567.96-6,245.80

Finding the Fourth Proportional to 11,280.40, 15,567.96 and 6,245.80

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Solution

The fourth proportional to 11,280.40, 15,567.96 and 6,245.80 is: 8,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.40 : 15,567.96 = 6,245.80 : x
  2. Step 2: Convert to fraction form
    11,280.40/15,567.96 = 6,245.80/x
  3. Step 3: Cross multiply
    11,280.40x = 15,567.96 × 6,245.80
  4. Step 4: Simplify right side
    11,280.40x = 97,234,364.57
  5. Step 5: Solve for x
    x = 97,234,364.57/11,280.40
  6. Step 6: Final answer
    x = 8,619.76

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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.