Home / 13,247.22-18,281.10-7,581.67

Finding the Fourth Proportional to 13,247.22, 18,281.10 and 7,581.67

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Solution

The fourth proportional to 13,247.22, 18,281.10 and 7,581.67 is: 10,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.22 : 18,281.10 = 7,581.67 : x
  2. Step 2: Convert to fraction form
    13,247.22/18,281.10 = 7,581.67/x
  3. Step 3: Cross multiply
    13,247.22x = 18,281.10 × 7,581.67
  4. Step 4: Simplify right side
    13,247.22x = 138,601,267.44
  5. Step 5: Solve for x
    x = 138,601,267.44/13,247.22
  6. Step 6: Final answer
    x = 10,462.67

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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.