Home / 14,137.80-21,206.70-13,068.60

Finding the Fourth Proportional to 14,137.80, 21,206.70 and 13,068.60

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Solution

The fourth proportional to 14,137.80, 21,206.70 and 13,068.60 is: 19,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.80 : 21,206.70 = 13,068.60 : x
  2. Step 2: Convert to fraction form
    14,137.80/21,206.70 = 13,068.60/x
  3. Step 3: Cross multiply
    14,137.80x = 21,206.70 × 13,068.60
  4. Step 4: Simplify right side
    14,137.80x = 277,141,879.62
  5. Step 5: Solve for x
    x = 277,141,879.62/14,137.80
  6. Step 6: Final answer
    x = 19,602.90

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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.