Home / 14,805.17-20,430.89-8,090.66

Finding the Fourth Proportional to 14,805.17, 20,430.89 and 8,090.66

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Solution

The fourth proportional to 14,805.17, 20,430.89 and 8,090.66 is: 11,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.17 : 20,430.89 = 8,090.66 : x
  2. Step 2: Convert to fraction form
    14,805.17/20,430.89 = 8,090.66/x
  3. Step 3: Cross multiply
    14,805.17x = 20,430.89 × 8,090.66
  4. Step 4: Simplify right side
    14,805.17x = 165,299,384.49
  5. Step 5: Solve for x
    x = 165,299,384.49/14,805.17
  6. Step 6: Final answer
    x = 11,164.98

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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.