Home / 14,805.06-20,430.36-8,090.92

Finding the Fourth Proportional to 14,805.06, 20,430.36 and 8,090.92

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Solution

The fourth proportional to 14,805.06, 20,430.36 and 8,090.92 is: 11,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.06 : 20,430.36 = 8,090.92 : x
  2. Step 2: Convert to fraction form
    14,805.06/20,430.36 = 8,090.92/x
  3. Step 3: Cross multiply
    14,805.06x = 20,430.36 × 8,090.92
  4. Step 4: Simplify right side
    14,805.06x = 165,300,408.33
  5. Step 5: Solve for x
    x = 165,300,408.33/14,805.06
  6. Step 6: Final answer
    x = 11,165.13

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Double scale
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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.