Home / 12,583.90-18,875.88-3,818.88

Finding the Fourth Proportional to 12,583.90, 18,875.88 and 3,818.88

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Solution

The fourth proportional to 12,583.90, 18,875.88 and 3,818.88 is: 5,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.90 : 18,875.88 = 3,818.88 : x
  2. Step 2: Convert to fraction form
    12,583.90/18,875.88 = 3,818.88/x
  3. Step 3: Cross multiply
    12,583.90x = 18,875.88 × 3,818.88
  4. Step 4: Simplify right side
    12,583.90x = 72,084,720.61
  5. Step 5: Solve for x
    x = 72,084,720.61/12,583.90
  6. Step 6: Final answer
    x = 5,728.33

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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.