Home / 18,977.99-28,468.37-7,291.22

Finding the Fourth Proportional to 18,977.99, 28,468.37 and 7,291.22

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Solution

The fourth proportional to 18,977.99, 28,468.37 and 7,291.22 is: 10,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.99 : 28,468.37 = 7,291.22 : x
  2. Step 2: Convert to fraction form
    18,977.99/28,468.37 = 7,291.22/x
  3. Step 3: Cross multiply
    18,977.99x = 28,468.37 × 7,291.22
  4. Step 4: Simplify right side
    18,977.99x = 207,569,024.60
  5. Step 5: Solve for x
    x = 207,569,024.60/18,977.99
  6. Step 6: Final answer
    x = 10,937.36

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1.5x scale

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.