Home / 13,769.06-19,000.69-7,800.60

Finding the Fourth Proportional to 13,769.06, 19,000.69 and 7,800.60

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Solution

The fourth proportional to 13,769.06, 19,000.69 and 7,800.60 is: 10,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.06 : 19,000.69 = 7,800.60 : x
  2. Step 2: Convert to fraction form
    13,769.06/19,000.69 = 7,800.60/x
  3. Step 3: Cross multiply
    13,769.06x = 19,000.69 × 7,800.60
  4. Step 4: Simplify right side
    13,769.06x = 148,216,834.17
  5. Step 5: Solve for x
    x = 148,216,834.17/13,769.06
  6. Step 6: Final answer
    x = 10,764.49

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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.