Home / 15,670.89-23,489.82-5,138.16

Finding the Fourth Proportional to 15,670.89, 23,489.82 and 5,138.16

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Solution

The fourth proportional to 15,670.89, 23,489.82 and 5,138.16 is: 7,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.89 : 23,489.82 = 5,138.16 : x
  2. Step 2: Convert to fraction form
    15,670.89/23,489.82 = 5,138.16/x
  3. Step 3: Cross multiply
    15,670.89x = 23,489.82 × 5,138.16
  4. Step 4: Simplify right side
    15,670.89x = 120,694,434.26
  5. Step 5: Solve for x
    x = 120,694,434.26/15,670.89
  6. Step 6: Final answer
    x = 7,701.82

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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.