Home / 13,599.82-18,821.73-13,272.58

Finding the Fourth Proportional to 13,599.82, 18,821.73 and 13,272.58

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Solution

The fourth proportional to 13,599.82, 18,821.73 and 13,272.58 is: 18,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.82 : 18,821.73 = 13,272.58 : x
  2. Step 2: Convert to fraction form
    13,599.82/18,821.73 = 13,272.58/x
  3. Step 3: Cross multiply
    13,599.82x = 18,821.73 × 13,272.58
  4. Step 4: Simplify right side
    13,599.82x = 249,812,917.16
  5. Step 5: Solve for x
    x = 249,812,917.16/13,599.82
  6. Step 6: Final answer
    x = 18,368.84

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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.