Home / 16,289.74-22,478.43-9,216.82

Finding the Fourth Proportional to 16,289.74, 22,478.43 and 9,216.82

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Solution

The fourth proportional to 16,289.74, 22,478.43 and 9,216.82 is: 12,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.74 : 22,478.43 = 9,216.82 : x
  2. Step 2: Convert to fraction form
    16,289.74/22,478.43 = 9,216.82/x
  3. Step 3: Cross multiply
    16,289.74x = 22,478.43 × 9,216.82
  4. Step 4: Simplify right side
    16,289.74x = 207,179,643.19
  5. Step 5: Solve for x
    x = 207,179,643.19/16,289.74
  6. Step 6: Final answer
    x = 12,718.41

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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.