Home / 19,651.47-27,119.91-11,585.46

Finding the Fourth Proportional to 19,651.47, 27,119.91 and 11,585.46

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Solution

The fourth proportional to 19,651.47, 27,119.91 and 11,585.46 is: 15,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.47 : 27,119.91 = 11,585.46 : x
  2. Step 2: Convert to fraction form
    19,651.47/27,119.91 = 11,585.46/x
  3. Step 3: Cross multiply
    19,651.47x = 27,119.91 × 11,585.46
  4. Step 4: Simplify right side
    19,651.47x = 314,196,632.51
  5. Step 5: Solve for x
    x = 314,196,632.51/19,651.47
  6. Step 6: Final answer
    x = 15,988.45

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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.