Home / 19,864.12-27,412.64-10,911.72

Finding the Fourth Proportional to 19,864.12, 27,412.64 and 10,911.72

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Solution

The fourth proportional to 19,864.12, 27,412.64 and 10,911.72 is: 15,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.12 : 27,412.64 = 10,911.72 : x
  2. Step 2: Convert to fraction form
    19,864.12/27,412.64 = 10,911.72/x
  3. Step 3: Cross multiply
    19,864.12x = 27,412.64 × 10,911.72
  4. Step 4: Simplify right side
    19,864.12x = 299,119,052.14
  5. Step 5: Solve for x
    x = 299,119,052.14/19,864.12
  6. Step 6: Final answer
    x = 15,058.26

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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.