Home / 10,837.20-16,250.40-4,987.20

Finding the Fourth Proportional to 10,837.20, 16,250.40 and 4,987.20

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Solution

The fourth proportional to 10,837.20, 16,250.40 and 4,987.20 is: 7,478.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,837.20 : 16,250.40 = 4,987.20 : x
  2. Step 2: Convert to fraction form
    10,837.20/16,250.40 = 4,987.20/x
  3. Step 3: Cross multiply
    10,837.20x = 16,250.40 × 4,987.20
  4. Step 4: Simplify right side
    10,837.20x = 81,043,994.88
  5. Step 5: Solve for x
    x = 81,043,994.88/10,837.20
  6. Step 6: Final answer
    x = 7,478.31

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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.