Home / 19,666.47-27,134.91-12,013.77

Finding the Fourth Proportional to 19,666.47, 27,134.91 and 12,013.77

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Solution

The fourth proportional to 19,666.47, 27,134.91 and 12,013.77 is: 16,576.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.47 : 27,134.91 = 12,013.77 : x
  2. Step 2: Convert to fraction form
    19,666.47/27,134.91 = 12,013.77/x
  3. Step 3: Cross multiply
    19,666.47x = 27,134.91 × 12,013.77
  4. Step 4: Simplify right side
    19,666.47x = 325,992,567.71
  5. Step 5: Solve for x
    x = 325,992,567.71/19,666.47
  6. Step 6: Final answer
    x = 16,576.06

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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.