Home / 15,986.22-23,981.80-5,453.77

Finding the Fourth Proportional to 15,986.22, 23,981.80 and 5,453.77

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Solution

The fourth proportional to 15,986.22, 23,981.80 and 5,453.77 is: 8,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.22 : 23,981.80 = 5,453.77 : x
  2. Step 2: Convert to fraction form
    15,986.22/23,981.80 = 5,453.77/x
  3. Step 3: Cross multiply
    15,986.22x = 23,981.80 × 5,453.77
  4. Step 4: Simplify right side
    15,986.22x = 130,791,254.07
  5. Step 5: Solve for x
    x = 130,791,254.07/15,986.22
  6. Step 6: Final answer
    x = 8,181.50

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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.