Home / 13,268.84-18,303.38-8,292.20

Finding the Fourth Proportional to 13,268.84, 18,303.38 and 8,292.20

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Solution

The fourth proportional to 13,268.84, 18,303.38 and 8,292.20 is: 11,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.84 : 18,303.38 = 8,292.20 : x
  2. Step 2: Convert to fraction form
    13,268.84/18,303.38 = 8,292.20/x
  3. Step 3: Cross multiply
    13,268.84x = 18,303.38 × 8,292.20
  4. Step 4: Simplify right side
    13,268.84x = 151,775,154.66
  5. Step 5: Solve for x
    x = 151,775,154.66/13,268.84
  6. Step 6: Final answer
    x = 11,438.47

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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.