Home / 18,521.06-25,559.01-10,137.50

Finding the Fourth Proportional to 18,521.06, 25,559.01 and 10,137.50

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Solution

The fourth proportional to 18,521.06, 25,559.01 and 10,137.50 is: 13,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.06 : 25,559.01 = 10,137.50 : x
  2. Step 2: Convert to fraction form
    18,521.06/25,559.01 = 10,137.50/x
  3. Step 3: Cross multiply
    18,521.06x = 25,559.01 × 10,137.50
  4. Step 4: Simplify right side
    18,521.06x = 259,104,463.88
  5. Step 5: Solve for x
    x = 259,104,463.88/18,521.06
  6. Step 6: Final answer
    x = 13,989.72

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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.