Home / 14,518.89-20,036.13-8,231.25

Finding the Fourth Proportional to 14,518.89, 20,036.13 and 8,231.25

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Solution

The fourth proportional to 14,518.89, 20,036.13 and 8,231.25 is: 11,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.89 : 20,036.13 = 8,231.25 : x
  2. Step 2: Convert to fraction form
    14,518.89/20,036.13 = 8,231.25/x
  3. Step 3: Cross multiply
    14,518.89x = 20,036.13 × 8,231.25
  4. Step 4: Simplify right side
    14,518.89x = 164,922,395.06
  5. Step 5: Solve for x
    x = 164,922,395.06/14,518.89
  6. Step 6: Final answer
    x = 11,359.16

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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.