Home / 14,836.77-20,474.71-8,122.40

Finding the Fourth Proportional to 14,836.77, 20,474.71 and 8,122.40

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Solution

The fourth proportional to 14,836.77, 20,474.71 and 8,122.40 is: 11,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,836.77 : 20,474.71 = 8,122.40 : x
  2. Step 2: Convert to fraction form
    14,836.77/20,474.71 = 8,122.40/x
  3. Step 3: Cross multiply
    14,836.77x = 20,474.71 × 8,122.40
  4. Step 4: Simplify right side
    14,836.77x = 166,303,661.82
  5. Step 5: Solve for x
    x = 166,303,661.82/14,836.77
  6. Step 6: Final answer
    x = 11,208.89

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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.