Home / 9,415.92-14,124.72-3,869.60

Finding the Fourth Proportional to 9,415.92, 14,124.72 and 3,869.60

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Solution

The fourth proportional to 9,415.92, 14,124.72 and 3,869.60 is: 5,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.92 : 14,124.72 = 3,869.60 : x
  2. Step 2: Convert to fraction form
    9,415.92/14,124.72 = 3,869.60/x
  3. Step 3: Cross multiply
    9,415.92x = 14,124.72 × 3,869.60
  4. Step 4: Simplify right side
    9,415.92x = 54,657,016.51
  5. Step 5: Solve for x
    x = 54,657,016.51/9,415.92
  6. Step 6: Final answer
    x = 5,804.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.