Home / 15,622.04-21,558.98-8,906.58

Finding the Fourth Proportional to 15,622.04, 21,558.98 and 8,906.58

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Solution

The fourth proportional to 15,622.04, 21,558.98 and 8,906.58 is: 12,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.04 : 21,558.98 = 8,906.58 : x
  2. Step 2: Convert to fraction form
    15,622.04/21,558.98 = 8,906.58/x
  3. Step 3: Cross multiply
    15,622.04x = 21,558.98 × 8,906.58
  4. Step 4: Simplify right side
    15,622.04x = 192,016,780.09
  5. Step 5: Solve for x
    x = 192,016,780.09/15,622.04
  6. Step 6: Final answer
    x = 12,291.40

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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.