Home / 14,130.14-19,499.55-7,756.76

Finding the Fourth Proportional to 14,130.14, 19,499.55 and 7,756.76

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Solution

The fourth proportional to 14,130.14, 19,499.55 and 7,756.76 is: 10,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.14 : 19,499.55 = 7,756.76 : x
  2. Step 2: Convert to fraction form
    14,130.14/19,499.55 = 7,756.76/x
  3. Step 3: Cross multiply
    14,130.14x = 19,499.55 × 7,756.76
  4. Step 4: Simplify right side
    14,130.14x = 151,253,329.46
  5. Step 5: Solve for x
    x = 151,253,329.46/14,130.14
  6. Step 6: Final answer
    x = 10,704.31

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Half scale
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Double scale
Find fourth proportional to 14,131.14, 19,500.93 and 7,757.76
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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.