Home / 11,897.08-16,420.12-11,302.34

Finding the Fourth Proportional to 11,897.08, 16,420.12 and 11,302.34

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Solution

The fourth proportional to 11,897.08, 16,420.12 and 11,302.34 is: 15,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.08 : 16,420.12 = 11,302.34 : x
  2. Step 2: Convert to fraction form
    11,897.08/16,420.12 = 11,302.34/x
  3. Step 3: Cross multiply
    11,897.08x = 16,420.12 × 11,302.34
  4. Step 4: Simplify right side
    11,897.08x = 185,585,668.72
  5. Step 5: Solve for x
    x = 185,585,668.72/11,897.08
  6. Step 6: Final answer
    x = 15,599.27

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.