Home / 12,357.08-18,513.74-10,264.86

Finding the Fourth Proportional to 12,357.08, 18,513.74 and 10,264.86

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Solution

The fourth proportional to 12,357.08, 18,513.74 and 10,264.86 is: 15,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.08 : 18,513.74 = 10,264.86 : x
  2. Step 2: Convert to fraction form
    12,357.08/18,513.74 = 10,264.86/x
  3. Step 3: Cross multiply
    12,357.08x = 18,513.74 × 10,264.86
  4. Step 4: Simplify right side
    12,357.08x = 190,040,949.18
  5. Step 5: Solve for x
    x = 190,040,949.18/12,357.08
  6. Step 6: Final answer
    x = 15,379.11

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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.