Home / 15,878.52-23,820.21-4,783.74

Finding the Fourth Proportional to 15,878.52, 23,820.21 and 4,783.74

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Solution

The fourth proportional to 15,878.52, 23,820.21 and 4,783.74 is: 7,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.52 : 23,820.21 = 4,783.74 : x
  2. Step 2: Convert to fraction form
    15,878.52/23,820.21 = 4,783.74/x
  3. Step 3: Cross multiply
    15,878.52x = 23,820.21 × 4,783.74
  4. Step 4: Simplify right side
    15,878.52x = 113,949,691.39
  5. Step 5: Solve for x
    x = 113,949,691.39/15,878.52
  6. Step 6: Final answer
    x = 7,176.34

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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.