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Finding the Fourth Proportional to 13,298, 19,947 and 4,064.72

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Solution

The fourth proportional to 13,298, 19,947 and 4,064.72 is: 6,097.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298 : 19,947 = 4,064.72 : x
  2. Step 2: Convert to fraction form
    13,298/19,947 = 4,064.72/x
  3. Step 3: Cross multiply
    13,298x = 19,947 × 4,064.72
  4. Step 4: Simplify right side
    13,298x = 81,078,969.84
  5. Step 5: Solve for x
    x = 81,078,969.84/13,298
  6. Step 6: Final answer
    x = 6,097.08

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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.