Home / 18,145.12-27,219.40-7,052.67

Finding the Fourth Proportional to 18,145.12, 27,219.40 and 7,052.67

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Solution

The fourth proportional to 18,145.12, 27,219.40 and 7,052.67 is: 10,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.12 : 27,219.40 = 7,052.67 : x
  2. Step 2: Convert to fraction form
    18,145.12/27,219.40 = 7,052.67/x
  3. Step 3: Cross multiply
    18,145.12x = 27,219.40 × 7,052.67
  4. Step 4: Simplify right side
    18,145.12x = 191,969,445.80
  5. Step 5: Solve for x
    x = 191,969,445.80/18,145.12
  6. Step 6: Final answer
    x = 10,579.67

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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.