Home / 10,819.04-14,919.44-7,981.60

Finding the Fourth Proportional to 10,819.04, 14,919.44 and 7,981.60

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Solution

The fourth proportional to 10,819.04, 14,919.44 and 7,981.60 is: 11,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.04 : 14,919.44 = 7,981.60 : x
  2. Step 2: Convert to fraction form
    10,819.04/14,919.44 = 7,981.60/x
  3. Step 3: Cross multiply
    10,819.04x = 14,919.44 × 7,981.60
  4. Step 4: Simplify right side
    10,819.04x = 119,081,002.30
  5. Step 5: Solve for x
    x = 119,081,002.30/10,819.04
  6. Step 6: Final answer
    x = 11,006.61

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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.