Home / 14,131.25-21,196.88-4,897.25

Finding the Fourth Proportional to 14,131.25, 21,196.88 and 4,897.25

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Solution

The fourth proportional to 14,131.25, 21,196.88 and 4,897.25 is: 7,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.25 : 21,196.88 = 4,897.25 : x
  2. Step 2: Convert to fraction form
    14,131.25/21,196.88 = 4,897.25/x
  3. Step 3: Cross multiply
    14,131.25x = 21,196.88 × 4,897.25
  4. Step 4: Simplify right side
    14,131.25x = 103,806,420.58
  5. Step 5: Solve for x
    x = 103,806,420.58/14,131.25
  6. Step 6: Final answer
    x = 7,345.88

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