Home / 13,582.71-18,737.46-8,268.30

Finding the Fourth Proportional to 13,582.71, 18,737.46 and 8,268.30

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Solution

The fourth proportional to 13,582.71, 18,737.46 and 8,268.30 is: 11,406.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.71 : 18,737.46 = 8,268.30 : x
  2. Step 2: Convert to fraction form
    13,582.71/18,737.46 = 8,268.30/x
  3. Step 3: Cross multiply
    13,582.71x = 18,737.46 × 8,268.30
  4. Step 4: Simplify right side
    13,582.71x = 154,926,940.52
  5. Step 5: Solve for x
    x = 154,926,940.52/13,582.71
  6. Step 6: Final answer
    x = 11,406.19

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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.