Home / 14,315.81-19,755.78-8,028.32

Finding the Fourth Proportional to 14,315.81, 19,755.78 and 8,028.32

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Solution

The fourth proportional to 14,315.81, 19,755.78 and 8,028.32 is: 11,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.81 : 19,755.78 = 8,028.32 : x
  2. Step 2: Convert to fraction form
    14,315.81/19,755.78 = 8,028.32/x
  3. Step 3: Cross multiply
    14,315.81x = 19,755.78 × 8,028.32
  4. Step 4: Simplify right side
    14,315.81x = 158,605,723.69
  5. Step 5: Solve for x
    x = 158,605,723.69/14,315.81
  6. Step 6: Final answer
    x = 11,079.06

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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.