Home / 13,880.70-20,818.74-4,994.24

Finding the Fourth Proportional to 13,880.70, 20,818.74 and 4,994.24

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Solution

The fourth proportional to 13,880.70, 20,818.74 and 4,994.24 is: 7,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.70 : 20,818.74 = 4,994.24 : x
  2. Step 2: Convert to fraction form
    13,880.70/20,818.74 = 4,994.24/x
  3. Step 3: Cross multiply
    13,880.70x = 20,818.74 × 4,994.24
  4. Step 4: Simplify right side
    13,880.70x = 103,973,679.96
  5. Step 5: Solve for x
    x = 103,973,679.96/13,880.70
  6. Step 6: Final answer
    x = 7,490.52

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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.