Home / 10,151.80-13,996.80-7,764.76

Finding the Fourth Proportional to 10,151.80, 13,996.80 and 7,764.76

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Solution

The fourth proportional to 10,151.80, 13,996.80 and 7,764.76 is: 10,705.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.80 : 13,996.80 = 7,764.76 : x
  2. Step 2: Convert to fraction form
    10,151.80/13,996.80 = 7,764.76/x
  3. Step 3: Cross multiply
    10,151.80x = 13,996.80 × 7,764.76
  4. Step 4: Simplify right side
    10,151.80x = 108,681,792.77
  5. Step 5: Solve for x
    x = 108,681,792.77/10,151.80
  6. Step 6: Final answer
    x = 10,705.67

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Half scale
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Double scale
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Similar ratio
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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.