Home / 18,710.29-28,064.62-4,670.38

Finding the Fourth Proportional to 18,710.29, 28,064.62 and 4,670.38

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Solution

The fourth proportional to 18,710.29, 28,064.62 and 4,670.38 is: 7,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.29 : 28,064.62 = 4,670.38 : x
  2. Step 2: Convert to fraction form
    18,710.29/28,064.62 = 4,670.38/x
  3. Step 3: Cross multiply
    18,710.29x = 28,064.62 × 4,670.38
  4. Step 4: Simplify right side
    18,710.29x = 131,072,439.96
  5. Step 5: Solve for x
    x = 131,072,439.96/18,710.29
  6. Step 6: Final answer
    x = 7,005.37

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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.