Home / 14,172.83-19,558.68-7,800.15

Finding the Fourth Proportional to 14,172.83, 19,558.68 and 7,800.15

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Solution

The fourth proportional to 14,172.83, 19,558.68 and 7,800.15 is: 10,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.83 : 19,558.68 = 7,800.15 : x
  2. Step 2: Convert to fraction form
    14,172.83/19,558.68 = 7,800.15/x
  3. Step 3: Cross multiply
    14,172.83x = 19,558.68 × 7,800.15
  4. Step 4: Simplify right side
    14,172.83x = 152,560,637.80
  5. Step 5: Solve for x
    x = 152,560,637.80/14,172.83
  6. Step 6: Final answer
    x = 10,764.30

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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.