Home / 13,995.56-19,313.14-7,706.76

Finding the Fourth Proportional to 13,995.56, 19,313.14 and 7,706.76

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Solution

The fourth proportional to 13,995.56, 19,313.14 and 7,706.76 is: 10,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.56 : 19,313.14 = 7,706.76 : x
  2. Step 2: Convert to fraction form
    13,995.56/19,313.14 = 7,706.76/x
  3. Step 3: Cross multiply
    13,995.56x = 19,313.14 × 7,706.76
  4. Step 4: Simplify right side
    13,995.56x = 148,841,734.83
  5. Step 5: Solve for x
    x = 148,841,734.83/13,995.56
  6. Step 6: Final answer
    x = 10,634.93

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Half scale
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Double scale
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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.