Home / 13,518.20-20,277.30-4,284.20

Finding the Fourth Proportional to 13,518.20, 20,277.30 and 4,284.20

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Solution

The fourth proportional to 13,518.20, 20,277.30 and 4,284.20 is: 6,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.20 : 20,277.30 = 4,284.20 : x
  2. Step 2: Convert to fraction form
    13,518.20/20,277.30 = 4,284.20/x
  3. Step 3: Cross multiply
    13,518.20x = 20,277.30 × 4,284.20
  4. Step 4: Simplify right side
    13,518.20x = 86,872,008.66
  5. Step 5: Solve for x
    x = 86,872,008.66/13,518.20
  6. Step 6: Final answer
    x = 6,426.30

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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.