Home / 12,582.63-18,857.66-5,178.51

Finding the Fourth Proportional to 12,582.63, 18,857.66 and 5,178.51

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Solution

The fourth proportional to 12,582.63, 18,857.66 and 5,178.51 is: 7,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.63 : 18,857.66 = 5,178.51 : x
  2. Step 2: Convert to fraction form
    12,582.63/18,857.66 = 5,178.51/x
  3. Step 3: Cross multiply
    12,582.63x = 18,857.66 × 5,178.51
  4. Step 4: Simplify right side
    12,582.63x = 97,654,554.99
  5. Step 5: Solve for x
    x = 97,654,554.99/12,582.63
  6. Step 6: Final answer
    x = 7,761.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.