Home / 13,666.12-20,492.19-8,988.77

Finding the Fourth Proportional to 13,666.12, 20,492.19 and 8,988.77

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Solution

The fourth proportional to 13,666.12, 20,492.19 and 8,988.77 is: 13,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.12 : 20,492.19 = 8,988.77 : x
  2. Step 2: Convert to fraction form
    13,666.12/20,492.19 = 8,988.77/x
  3. Step 3: Cross multiply
    13,666.12x = 20,492.19 × 8,988.77
  4. Step 4: Simplify right side
    13,666.12x = 184,199,633.94
  5. Step 5: Solve for x
    x = 184,199,633.94/13,666.12
  6. Step 6: Final answer
    x = 13,478.56

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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.