Home / 16,885.40-25,328.10-5,197.10

Finding the Fourth Proportional to 16,885.40, 25,328.10 and 5,197.10

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Solution

The fourth proportional to 16,885.40, 25,328.10 and 5,197.10 is: 7,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.40 : 25,328.10 = 5,197.10 : x
  2. Step 2: Convert to fraction form
    16,885.40/25,328.10 = 5,197.10/x
  3. Step 3: Cross multiply
    16,885.40x = 25,328.10 × 5,197.10
  4. Step 4: Simplify right side
    16,885.40x = 131,632,668.51
  5. Step 5: Solve for x
    x = 131,632,668.51/16,885.40
  6. Step 6: Final answer
    x = 7,795.65

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Double scale
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Similar ratio
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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.