Home / 19,666.65-27,140.01-11,709.15

Finding the Fourth Proportional to 19,666.65, 27,140.01 and 11,709.15

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Solution

The fourth proportional to 19,666.65, 27,140.01 and 11,709.15 is: 16,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.65 : 27,140.01 = 11,709.15 : x
  2. Step 2: Convert to fraction form
    19,666.65/27,140.01 = 11,709.15/x
  3. Step 3: Cross multiply
    19,666.65x = 27,140.01 × 11,709.15
  4. Step 4: Simplify right side
    19,666.65x = 317,786,448.09
  5. Step 5: Solve for x
    x = 317,786,448.09/19,666.65
  6. Step 6: Final answer
    x = 16,158.65

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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.