Home / 18,999.24-26,219.38-10,615.72

Finding the Fourth Proportional to 18,999.24, 26,219.38 and 10,615.72

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Solution

The fourth proportional to 18,999.24, 26,219.38 and 10,615.72 is: 14,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.24 : 26,219.38 = 10,615.72 : x
  2. Step 2: Convert to fraction form
    18,999.24/26,219.38 = 10,615.72/x
  3. Step 3: Cross multiply
    18,999.24x = 26,219.38 × 10,615.72
  4. Step 4: Simplify right side
    18,999.24x = 278,337,596.65
  5. Step 5: Solve for x
    x = 278,337,596.65/18,999.24
  6. Step 6: Final answer
    x = 14,649.93

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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.