Home / 19,137.47-28,711.06-5,989.95

Finding the Fourth Proportional to 19,137.47, 28,711.06 and 5,989.95

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Solution

The fourth proportional to 19,137.47, 28,711.06 and 5,989.95 is: 8,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.47 : 28,711.06 = 5,989.95 : x
  2. Step 2: Convert to fraction form
    19,137.47/28,711.06 = 5,989.95/x
  3. Step 3: Cross multiply
    19,137.47x = 28,711.06 × 5,989.95
  4. Step 4: Simplify right side
    19,137.47x = 171,977,798.87
  5. Step 5: Solve for x
    x = 171,977,798.87/19,137.47
  6. Step 6: Final answer
    x = 8,986.45

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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.