Home / 18,905.26-26,089.34-10,521.76

Finding the Fourth Proportional to 18,905.26, 26,089.34 and 10,521.76

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Solution

The fourth proportional to 18,905.26, 26,089.34 and 10,521.76 is: 14,520.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.26 : 26,089.34 = 10,521.76 : x
  2. Step 2: Convert to fraction form
    18,905.26/26,089.34 = 10,521.76/x
  3. Step 3: Cross multiply
    18,905.26x = 26,089.34 × 10,521.76
  4. Step 4: Simplify right side
    18,905.26x = 274,505,774.04
  5. Step 5: Solve for x
    x = 274,505,774.04/18,905.26
  6. Step 6: Final answer
    x = 14,520.07

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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.