Home / 16,778.99-23,155.03-9,225.45

Finding the Fourth Proportional to 16,778.99, 23,155.03 and 9,225.45

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Solution

The fourth proportional to 16,778.99, 23,155.03 and 9,225.45 is: 12,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.99 : 23,155.03 = 9,225.45 : x
  2. Step 2: Convert to fraction form
    16,778.99/23,155.03 = 9,225.45/x
  3. Step 3: Cross multiply
    16,778.99x = 23,155.03 × 9,225.45
  4. Step 4: Simplify right side
    16,778.99x = 213,615,571.51
  5. Step 5: Solve for x
    x = 213,615,571.51/16,778.99
  6. Step 6: Final answer
    x = 12,731.13

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1.5x scale

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.