Home / 9,415.89-14,124.63-2,490.39

Finding the Fourth Proportional to 9,415.89, 14,124.63 and 2,490.39

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Solution

The fourth proportional to 9,415.89, 14,124.63 and 2,490.39 is: 3,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.89 : 14,124.63 = 2,490.39 : x
  2. Step 2: Convert to fraction form
    9,415.89/14,124.63 = 2,490.39/x
  3. Step 3: Cross multiply
    9,415.89x = 14,124.63 × 2,490.39
  4. Step 4: Simplify right side
    9,415.89x = 35,175,837.31
  5. Step 5: Solve for x
    x = 35,175,837.31/9,415.89
  6. Step 6: Final answer
    x = 3,735.80

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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.