Home / 8,393.30-12,589.70-3,459.18

Finding the Fourth Proportional to 8,393.30, 12,589.70 and 3,459.18

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Solution

The fourth proportional to 8,393.30, 12,589.70 and 3,459.18 is: 5,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.30 : 12,589.70 = 3,459.18 : x
  2. Step 2: Convert to fraction form
    8,393.30/12,589.70 = 3,459.18/x
  3. Step 3: Cross multiply
    8,393.30x = 12,589.70 × 3,459.18
  4. Step 4: Simplify right side
    8,393.30x = 43,550,038.45
  5. Step 5: Solve for x
    x = 43,550,038.45/8,393.30
  6. Step 6: Final answer
    x = 5,188.67

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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.