Home / 18,820.24-26,005.76-13,505.72

Finding the Fourth Proportional to 18,820.24, 26,005.76 and 13,505.72

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Solution

The fourth proportional to 18,820.24, 26,005.76 and 13,505.72 is: 18,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.24 : 26,005.76 = 13,505.72 : x
  2. Step 2: Convert to fraction form
    18,820.24/26,005.76 = 13,505.72/x
  3. Step 3: Cross multiply
    18,820.24x = 26,005.76 × 13,505.72
  4. Step 4: Simplify right side
    18,820.24x = 351,226,512.95
  5. Step 5: Solve for x
    x = 351,226,512.95/18,820.24
  6. Step 6: Final answer
    x = 18,662.17

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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.