Home / 14,065.39-19,409.71-7,777.87

Finding the Fourth Proportional to 14,065.39, 19,409.71 and 7,777.87

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Solution

The fourth proportional to 14,065.39, 19,409.71 and 7,777.87 is: 10,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.39 : 19,409.71 = 7,777.87 : x
  2. Step 2: Convert to fraction form
    14,065.39/19,409.71 = 7,777.87/x
  3. Step 3: Cross multiply
    14,065.39x = 19,409.71 × 7,777.87
  4. Step 4: Simplify right side
    14,065.39x = 150,966,201.12
  5. Step 5: Solve for x
    x = 150,966,201.12/14,065.39
  6. Step 6: Final answer
    x = 10,733.17

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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.