Home / 14,539.20-21,808.80-8,634.30

Finding the Fourth Proportional to 14,539.20, 21,808.80 and 8,634.30

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Solution

The fourth proportional to 14,539.20, 21,808.80 and 8,634.30 is: 12,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,539.20 : 21,808.80 = 8,634.30 : x
  2. Step 2: Convert to fraction form
    14,539.20/21,808.80 = 8,634.30/x
  3. Step 3: Cross multiply
    14,539.20x = 21,808.80 × 8,634.30
  4. Step 4: Simplify right side
    14,539.20x = 188,303,721.84
  5. Step 5: Solve for x
    x = 188,303,721.84/14,539.20
  6. Step 6: Final answer
    x = 12,951.45

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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.