Home / 8,155.31-11,254.37-4,619.21

Finding the Fourth Proportional to 8,155.31, 11,254.37 and 4,619.21

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Solution

The fourth proportional to 8,155.31, 11,254.37 and 4,619.21 is: 6,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.31 : 11,254.37 = 4,619.21 : x
  2. Step 2: Convert to fraction form
    8,155.31/11,254.37 = 4,619.21/x
  3. Step 3: Cross multiply
    8,155.31x = 11,254.37 × 4,619.21
  4. Step 4: Simplify right side
    8,155.31x = 51,986,298.45
  5. Step 5: Solve for x
    x = 51,986,298.45/8,155.31
  6. Step 6: Final answer
    x = 6,374.53

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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.