Home / 13,971.60-19,280.94-7,684

Finding the Fourth Proportional to 13,971.60, 19,280.94 and 7,684

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Solution

The fourth proportional to 13,971.60, 19,280.94 and 7,684 is: 10,603.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.60 : 19,280.94 = 7,684 : x
  2. Step 2: Convert to fraction form
    13,971.60/19,280.94 = 7,684/x
  3. Step 3: Cross multiply
    13,971.60x = 19,280.94 × 7,684
  4. Step 4: Simplify right side
    13,971.60x = 148,154,742.96
  5. Step 5: Solve for x
    x = 148,154,742.96/13,971.60
  6. Step 6: Final answer
    x = 10,603.99

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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.