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Finding the Fourth Proportional to 16,783.60, 25,174.60 and 5,689.20

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Solution

The fourth proportional to 16,783.60, 25,174.60 and 5,689.20 is: 8,533.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,783.60 : 25,174.60 = 5,689.20 : x
  2. Step 2: Convert to fraction form
    16,783.60/25,174.60 = 5,689.20/x
  3. Step 3: Cross multiply
    16,783.60x = 25,174.60 × 5,689.20
  4. Step 4: Simplify right side
    16,783.60x = 143,223,334.32
  5. Step 5: Solve for x
    x = 143,223,334.32/16,783.60
  6. Step 6: Final answer
    x = 8,533.53

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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.