Home / 18,390.09-25,373.91-10,835.85

Finding the Fourth Proportional to 18,390.09, 25,373.91 and 10,835.85

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Solution

The fourth proportional to 18,390.09, 25,373.91 and 10,835.85 is: 14,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.09 : 25,373.91 = 10,835.85 : x
  2. Step 2: Convert to fraction form
    18,390.09/25,373.91 = 10,835.85/x
  3. Step 3: Cross multiply
    18,390.09x = 25,373.91 × 10,835.85
  4. Step 4: Simplify right side
    18,390.09x = 274,947,882.67
  5. Step 5: Solve for x
    x = 274,947,882.67/18,390.09
  6. Step 6: Final answer
    x = 14,950.87

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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.