Home / 19,848.66-27,376.68-13,140.03

Finding the Fourth Proportional to 19,848.66, 27,376.68 and 13,140.03

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Solution

The fourth proportional to 19,848.66, 27,376.68 and 13,140.03 is: 18,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,848.66 : 27,376.68 = 13,140.03 : x
  2. Step 2: Convert to fraction form
    19,848.66/27,376.68 = 13,140.03/x
  3. Step 3: Cross multiply
    19,848.66x = 27,376.68 × 13,140.03
  4. Step 4: Simplify right side
    19,848.66x = 359,730,396.50
  5. Step 5: Solve for x
    x = 359,730,396.50/19,848.66
  6. Step 6: Final answer
    x = 18,123.66

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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.