Home / 13,890.84-20,836.26-4,663.32

Finding the Fourth Proportional to 13,890.84, 20,836.26 and 4,663.32

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Solution

The fourth proportional to 13,890.84, 20,836.26 and 4,663.32 is: 6,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.84 : 20,836.26 = 4,663.32 : x
  2. Step 2: Convert to fraction form
    13,890.84/20,836.26 = 4,663.32/x
  3. Step 3: Cross multiply
    13,890.84x = 20,836.26 × 4,663.32
  4. Step 4: Simplify right side
    13,890.84x = 97,166,147.98
  5. Step 5: Solve for x
    x = 97,166,147.98/13,890.84
  6. Step 6: Final answer
    x = 6,994.98

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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.