Home / 16,464.81-22,721.48-9,391.05

Finding the Fourth Proportional to 16,464.81, 22,721.48 and 9,391.05

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Solution

The fourth proportional to 16,464.81, 22,721.48 and 9,391.05 is: 12,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,464.81 : 22,721.48 = 9,391.05 : x
  2. Step 2: Convert to fraction form
    16,464.81/22,721.48 = 9,391.05/x
  3. Step 3: Cross multiply
    16,464.81x = 22,721.48 × 9,391.05
  4. Step 4: Simplify right side
    16,464.81x = 213,378,507.80
  5. Step 5: Solve for x
    x = 213,378,507.80/16,464.81
  6. Step 6: Final answer
    x = 12,959.67

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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.