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Finding the Fourth Proportional to 15,805.81, 23,710.13 and 4,119.13

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Solution

The fourth proportional to 15,805.81, 23,710.13 and 4,119.13 is: 6,179.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.81 : 23,710.13 = 4,119.13 : x
  2. Step 2: Convert to fraction form
    15,805.81/23,710.13 = 4,119.13/x
  3. Step 3: Cross multiply
    15,805.81x = 23,710.13 × 4,119.13
  4. Step 4: Simplify right side
    15,805.81x = 97,665,107.79
  5. Step 5: Solve for x
    x = 97,665,107.79/15,805.81
  6. Step 6: Final answer
    x = 6,179.06

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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.