Home / 13,121.64-19,677.60-4,798.80

Finding the Fourth Proportional to 13,121.64, 19,677.60 and 4,798.80

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Solution

The fourth proportional to 13,121.64, 19,677.60 and 4,798.80 is: 7,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.64 : 19,677.60 = 4,798.80 : x
  2. Step 2: Convert to fraction form
    13,121.64/19,677.60 = 4,798.80/x
  3. Step 3: Cross multiply
    13,121.64x = 19,677.60 × 4,798.80
  4. Step 4: Simplify right side
    13,121.64x = 94,428,866.88
  5. Step 5: Solve for x
    x = 94,428,866.88/13,121.64
  6. Step 6: Final answer
    x = 7,196.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.