Home / 13,582.58-20,342.28-13,208.88

Finding the Fourth Proportional to 13,582.58, 20,342.28 and 13,208.88

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Solution

The fourth proportional to 13,582.58, 20,342.28 and 13,208.88 is: 19,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.58 : 20,342.28 = 13,208.88 : x
  2. Step 2: Convert to fraction form
    13,582.58/20,342.28 = 13,208.88/x
  3. Step 3: Cross multiply
    13,582.58x = 20,342.28 × 13,208.88
  4. Step 4: Simplify right side
    13,582.58x = 268,698,735.45
  5. Step 5: Solve for x
    x = 268,698,735.45/13,582.58
  6. Step 6: Final answer
    x = 19,782.60

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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.