Home / 18,219.32-27,328.98-10,422.67

Finding the Fourth Proportional to 18,219.32, 27,328.98 and 10,422.67

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Solution

The fourth proportional to 18,219.32, 27,328.98 and 10,422.67 is: 15,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.32 : 27,328.98 = 10,422.67 : x
  2. Step 2: Convert to fraction form
    18,219.32/27,328.98 = 10,422.67/x
  3. Step 3: Cross multiply
    18,219.32x = 27,328.98 × 10,422.67
  4. Step 4: Simplify right side
    18,219.32x = 284,840,961.98
  5. Step 5: Solve for x
    x = 284,840,961.98/18,219.32
  6. Step 6: Final answer
    x = 15,634.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.