Home / 13,530.96-18,666.18-8,492.67

Finding the Fourth Proportional to 13,530.96, 18,666.18 and 8,492.67

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Solution

The fourth proportional to 13,530.96, 18,666.18 and 8,492.67 is: 11,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.96 : 18,666.18 = 8,492.67 : x
  2. Step 2: Convert to fraction form
    13,530.96/18,666.18 = 8,492.67/x
  3. Step 3: Cross multiply
    13,530.96x = 18,666.18 × 8,492.67
  4. Step 4: Simplify right side
    13,530.96x = 158,525,706.90
  5. Step 5: Solve for x
    x = 158,525,706.90/13,530.96
  6. Step 6: Final answer
    x = 11,715.78

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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.