Home / 13,219.64-19,830.16-3,359

Finding the Fourth Proportional to 13,219.64, 19,830.16 and 3,359

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Solution

The fourth proportional to 13,219.64, 19,830.16 and 3,359 is: 5,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.64 : 19,830.16 = 3,359 : x
  2. Step 2: Convert to fraction form
    13,219.64/19,830.16 = 3,359/x
  3. Step 3: Cross multiply
    13,219.64x = 19,830.16 × 3,359
  4. Step 4: Simplify right side
    13,219.64x = 66,609,507.44
  5. Step 5: Solve for x
    x = 66,609,507.44/13,219.64
  6. Step 6: Final answer
    x = 5,038.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.