Home / 13,775.91-19,007.51-9,795.57

Finding the Fourth Proportional to 13,775.91, 19,007.51 and 9,795.57

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Solution

The fourth proportional to 13,775.91, 19,007.51 and 9,795.57 is: 13,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.91 : 19,007.51 = 9,795.57 : x
  2. Step 2: Convert to fraction form
    13,775.91/19,007.51 = 9,795.57/x
  3. Step 3: Cross multiply
    13,775.91x = 19,007.51 × 9,795.57
  4. Step 4: Simplify right side
    13,775.91x = 186,189,345.75
  5. Step 5: Solve for x
    x = 186,189,345.75/13,775.91
  6. Step 6: Final answer
    x = 13,515.58

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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.