Home / 12,736.10-19,104.15-9,783.65

Finding the Fourth Proportional to 12,736.10, 19,104.15 and 9,783.65

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Solution

The fourth proportional to 12,736.10, 19,104.15 and 9,783.65 is: 14,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.10 : 19,104.15 = 9,783.65 : x
  2. Step 2: Convert to fraction form
    12,736.10/19,104.15 = 9,783.65/x
  3. Step 3: Cross multiply
    12,736.10x = 19,104.15 × 9,783.65
  4. Step 4: Simplify right side
    12,736.10x = 186,908,317.15
  5. Step 5: Solve for x
    x = 186,908,317.15/12,736.10
  6. Step 6: Final answer
    x = 14,675.48

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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.