Home / 13,582.05-20,376.54-4,222.15

Finding the Fourth Proportional to 13,582.05, 20,376.54 and 4,222.15

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Solution

The fourth proportional to 13,582.05, 20,376.54 and 4,222.15 is: 6,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.05 : 20,376.54 = 4,222.15 : x
  2. Step 2: Convert to fraction form
    13,582.05/20,376.54 = 4,222.15/x
  3. Step 3: Cross multiply
    13,582.05x = 20,376.54 × 4,222.15
  4. Step 4: Simplify right side
    13,582.05x = 86,032,780.64
  5. Step 5: Solve for x
    x = 86,032,780.64/13,582.05
  6. Step 6: Final answer
    x = 6,334.30

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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.