Home / 18,864.83-26,031.68-11,309.76

Finding the Fourth Proportional to 18,864.83, 26,031.68 and 11,309.76

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Solution

The fourth proportional to 18,864.83, 26,031.68 and 11,309.76 is: 15,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.83 : 26,031.68 = 11,309.76 : x
  2. Step 2: Convert to fraction form
    18,864.83/26,031.68 = 11,309.76/x
  3. Step 3: Cross multiply
    18,864.83x = 26,031.68 × 11,309.76
  4. Step 4: Simplify right side
    18,864.83x = 294,412,039.06
  5. Step 5: Solve for x
    x = 294,412,039.06/18,864.83
  6. Step 6: Final answer
    x = 15,606.40

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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.