Home / 13,277.47-19,911.57-3,915.00

Finding the Fourth Proportional to 13,277.47, 19,911.57 and 3,915.00

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Solution

The fourth proportional to 13,277.47, 19,911.57 and 3,915.00 is: 5,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.47 : 19,911.57 = 3,915.00 : x
  2. Step 2: Convert to fraction form
    13,277.47/19,911.57 = 3,915.00/x
  3. Step 3: Cross multiply
    13,277.47x = 19,911.57 × 3,915.00
  4. Step 4: Simplify right side
    13,277.47x = 77,953,856.54
  5. Step 5: Solve for x
    x = 77,953,856.54/13,277.47
  6. Step 6: Final answer
    x = 5,871.14

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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.