Home / 10,819.40-14,930.80-6,039.32

Finding the Fourth Proportional to 10,819.40, 14,930.80 and 6,039.32

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Solution

The fourth proportional to 10,819.40, 14,930.80 and 6,039.32 is: 8,334.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.40 : 14,930.80 = 6,039.32 : x
  2. Step 2: Convert to fraction form
    10,819.40/14,930.80 = 6,039.32/x
  3. Step 3: Cross multiply
    10,819.40x = 14,930.80 × 6,039.32
  4. Step 4: Simplify right side
    10,819.40x = 90,171,879.06
  5. Step 5: Solve for x
    x = 90,171,879.06/10,819.40
  6. Step 6: Final answer
    x = 8,334.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.