Home / 16,940.79-23,381.55-9,775.32

Finding the Fourth Proportional to 16,940.79, 23,381.55 and 9,775.32

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Solution

The fourth proportional to 16,940.79, 23,381.55 and 9,775.32 is: 13,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.79 : 23,381.55 = 9,775.32 : x
  2. Step 2: Convert to fraction form
    16,940.79/23,381.55 = 9,775.32/x
  3. Step 3: Cross multiply
    16,940.79x = 23,381.55 × 9,775.32
  4. Step 4: Simplify right side
    16,940.79x = 228,562,133.35
  5. Step 5: Solve for x
    x = 228,562,133.35/16,940.79
  6. Step 6: Final answer
    x = 13,491.82

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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.