Home / 12,295.08-18,417.96-5,712.12

Finding the Fourth Proportional to 12,295.08, 18,417.96 and 5,712.12

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Solution

The fourth proportional to 12,295.08, 18,417.96 and 5,712.12 is: 8,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.08 : 18,417.96 = 5,712.12 : x
  2. Step 2: Convert to fraction form
    12,295.08/18,417.96 = 5,712.12/x
  3. Step 3: Cross multiply
    12,295.08x = 18,417.96 × 5,712.12
  4. Step 4: Simplify right side
    12,295.08x = 105,205,597.68
  5. Step 5: Solve for x
    x = 105,205,597.68/12,295.08
  6. Step 6: Final answer
    x = 8,556.72

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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.