Home / 13,993.49-20,985.19-4,631.78

Finding the Fourth Proportional to 13,993.49, 20,985.19 and 4,631.78

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Solution

The fourth proportional to 13,993.49, 20,985.19 and 4,631.78 is: 6,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.49 : 20,985.19 = 4,631.78 : x
  2. Step 2: Convert to fraction form
    13,993.49/20,985.19 = 4,631.78/x
  3. Step 3: Cross multiply
    13,993.49x = 20,985.19 × 4,631.78
  4. Step 4: Simplify right side
    13,993.49x = 97,198,824.22
  5. Step 5: Solve for x
    x = 97,198,824.22/13,993.49
  6. Step 6: Final answer
    x = 6,946.00

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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.