Home / 16,830.52-25,245.78-5,143.64

Finding the Fourth Proportional to 16,830.52, 25,245.78 and 5,143.64

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Solution

The fourth proportional to 16,830.52, 25,245.78 and 5,143.64 is: 7,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.52 : 25,245.78 = 5,143.64 : x
  2. Step 2: Convert to fraction form
    16,830.52/25,245.78 = 5,143.64/x
  3. Step 3: Cross multiply
    16,830.52x = 25,245.78 × 5,143.64
  4. Step 4: Simplify right side
    16,830.52x = 129,855,058.32
  5. Step 5: Solve for x
    x = 129,855,058.32/16,830.52
  6. Step 6: Final answer
    x = 7,715.45

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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.