Home / 14,506.69-20,019.21-8,219.05

Finding the Fourth Proportional to 14,506.69, 20,019.21 and 8,219.05

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Solution

The fourth proportional to 14,506.69, 20,019.21 and 8,219.05 is: 11,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.69 : 20,019.21 = 8,219.05 : x
  2. Step 2: Convert to fraction form
    14,506.69/20,019.21 = 8,219.05/x
  3. Step 3: Cross multiply
    14,506.69x = 20,019.21 × 8,219.05
  4. Step 4: Simplify right side
    14,506.69x = 164,538,887.95
  5. Step 5: Solve for x
    x = 164,538,887.95/14,506.69
  6. Step 6: Final answer
    x = 11,342.28

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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.