Home / 18,360.86-25,337.49-10,405.64

Finding the Fourth Proportional to 18,360.86, 25,337.49 and 10,405.64

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Solution

The fourth proportional to 18,360.86, 25,337.49 and 10,405.64 is: 14,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.86 : 25,337.49 = 10,405.64 : x
  2. Step 2: Convert to fraction form
    18,360.86/25,337.49 = 10,405.64/x
  3. Step 3: Cross multiply
    18,360.86x = 25,337.49 × 10,405.64
  4. Step 4: Simplify right side
    18,360.86x = 263,652,747.42
  5. Step 5: Solve for x
    x = 263,652,747.42/18,360.86
  6. Step 6: Final answer
    x = 14,359.50

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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.