Home / 12,500.82-18,756.40-5,477.20

Finding the Fourth Proportional to 12,500.82, 18,756.40 and 5,477.20

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Solution

The fourth proportional to 12,500.82, 18,756.40 and 5,477.20 is: 8,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.82 : 18,756.40 = 5,477.20 : x
  2. Step 2: Convert to fraction form
    12,500.82/18,756.40 = 5,477.20/x
  3. Step 3: Cross multiply
    12,500.82x = 18,756.40 × 5,477.20
  4. Step 4: Simplify right side
    12,500.82x = 102,732,554.08
  5. Step 5: Solve for x
    x = 102,732,554.08/12,500.82
  6. Step 6: Final answer
    x = 8,218.07

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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.