Home / 14,188.38-19,579.77-7,900.80

Finding the Fourth Proportional to 14,188.38, 19,579.77 and 7,900.80

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Solution

The fourth proportional to 14,188.38, 19,579.77 and 7,900.80 is: 10,903.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.38 : 19,579.77 = 7,900.80 : x
  2. Step 2: Convert to fraction form
    14,188.38/19,579.77 = 7,900.80/x
  3. Step 3: Cross multiply
    14,188.38x = 19,579.77 × 7,900.80
  4. Step 4: Simplify right side
    14,188.38x = 154,695,846.82
  5. Step 5: Solve for x
    x = 154,695,846.82/14,188.38
  6. Step 6: Final answer
    x = 10,903.00

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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.