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Finding the Fourth Proportional to 15,880.80, 23,820.12 and 6,019.32

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Solution

The fourth proportional to 15,880.80, 23,820.12 and 6,019.32 is: 9,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.80 : 23,820.12 = 6,019.32 : x
  2. Step 2: Convert to fraction form
    15,880.80/23,820.12 = 6,019.32/x
  3. Step 3: Cross multiply
    15,880.80x = 23,820.12 × 6,019.32
  4. Step 4: Simplify right side
    15,880.80x = 143,380,924.72
  5. Step 5: Solve for x
    x = 143,380,924.72/15,880.80
  6. Step 6: Final answer
    x = 9,028.57

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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.