Home / 14,428.35-19,911.38-8,464.32

Finding the Fourth Proportional to 14,428.35, 19,911.38 and 8,464.32

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Solution

The fourth proportional to 14,428.35, 19,911.38 and 8,464.32 is: 11,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.35 : 19,911.38 = 8,464.32 : x
  2. Step 2: Convert to fraction form
    14,428.35/19,911.38 = 8,464.32/x
  3. Step 3: Cross multiply
    14,428.35x = 19,911.38 × 8,464.32
  4. Step 4: Simplify right side
    14,428.35x = 168,536,291.96
  5. Step 5: Solve for x
    x = 168,536,291.96/14,428.35
  6. Step 6: Final answer
    x = 11,680.91

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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.