Home / 18,790.08-25,929.60-10,406.40

Finding the Fourth Proportional to 18,790.08, 25,929.60 and 10,406.40

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Solution

The fourth proportional to 18,790.08, 25,929.60 and 10,406.40 is: 14,360.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.08 : 25,929.60 = 10,406.40 : x
  2. Step 2: Convert to fraction form
    18,790.08/25,929.60 = 10,406.40/x
  3. Step 3: Cross multiply
    18,790.08x = 25,929.60 × 10,406.40
  4. Step 4: Simplify right side
    18,790.08x = 269,833,789.44
  5. Step 5: Solve for x
    x = 269,833,789.44/18,790.08
  6. Step 6: Final answer
    x = 14,360.44

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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.