Home / 13,218.90-18,232.56-8,498.67

Finding the Fourth Proportional to 13,218.90, 18,232.56 and 8,498.67

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Solution

The fourth proportional to 13,218.90, 18,232.56 and 8,498.67 is: 11,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.90 : 18,232.56 = 8,498.67 : x
  2. Step 2: Convert to fraction form
    13,218.90/18,232.56 = 8,498.67/x
  3. Step 3: Cross multiply
    13,218.90x = 18,232.56 × 8,498.67
  4. Step 4: Simplify right side
    13,218.90x = 154,952,510.70
  5. Step 5: Solve for x
    x = 154,952,510.70/13,218.90
  6. Step 6: Final answer
    x = 11,722.04

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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.