Home / 13,818.90-20,728.35-4,583.70

Finding the Fourth Proportional to 13,818.90, 20,728.35 and 4,583.70

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Solution

The fourth proportional to 13,818.90, 20,728.35 and 4,583.70 is: 6,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.90 : 20,728.35 = 4,583.70 : x
  2. Step 2: Convert to fraction form
    13,818.90/20,728.35 = 4,583.70/x
  3. Step 3: Cross multiply
    13,818.90x = 20,728.35 × 4,583.70
  4. Step 4: Simplify right side
    13,818.90x = 95,012,537.90
  5. Step 5: Solve for x
    x = 95,012,537.90/13,818.90
  6. Step 6: Final answer
    x = 6,875.55

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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.