Home / 14,172.58-19,558.18-7,884.96

Finding the Fourth Proportional to 14,172.58, 19,558.18 and 7,884.96

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Solution

The fourth proportional to 14,172.58, 19,558.18 and 7,884.96 is: 10,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.58 : 19,558.18 = 7,884.96 : x
  2. Step 2: Convert to fraction form
    14,172.58/19,558.18 = 7,884.96/x
  3. Step 3: Cross multiply
    14,172.58x = 19,558.18 × 7,884.96
  4. Step 4: Simplify right side
    14,172.58x = 154,215,403.49
  5. Step 5: Solve for x
    x = 154,215,403.49/14,172.58
  6. Step 6: Final answer
    x = 10,881.25

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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.