Home / 14,087.96-21,130.71-8,539.67

Finding the Fourth Proportional to 14,087.96, 21,130.71 and 8,539.67

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Solution

The fourth proportional to 14,087.96, 21,130.71 and 8,539.67 is: 12,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.96 : 21,130.71 = 8,539.67 : x
  2. Step 2: Convert to fraction form
    14,087.96/21,130.71 = 8,539.67/x
  3. Step 3: Cross multiply
    14,087.96x = 21,130.71 × 8,539.67
  4. Step 4: Simplify right side
    14,087.96x = 180,449,184.61
  5. Step 5: Solve for x
    x = 180,449,184.61/14,087.96
  6. Step 6: Final answer
    x = 12,808.76

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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.