Home / 14,088.96-21,132.21-8,540.67

Finding the Fourth Proportional to 14,088.96, 21,132.21 and 8,540.67

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Solution

The fourth proportional to 14,088.96, 21,132.21 and 8,540.67 is: 12,810.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.96 : 21,132.21 = 8,540.67 : x
  2. Step 2: Convert to fraction form
    14,088.96/21,132.21 = 8,540.67/x
  3. Step 3: Cross multiply
    14,088.96x = 21,132.21 × 8,540.67
  4. Step 4: Simplify right side
    14,088.96x = 180,483,231.98
  5. Step 5: Solve for x
    x = 180,483,231.98/14,088.96
  6. Step 6: Final answer
    x = 12,810.26

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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.