Home / 13,689.77-20,536.68-4,327.66

Finding the Fourth Proportional to 13,689.77, 20,536.68 and 4,327.66

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Solution

The fourth proportional to 13,689.77, 20,536.68 and 4,327.66 is: 6,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689.77 : 20,536.68 = 4,327.66 : x
  2. Step 2: Convert to fraction form
    13,689.77/20,536.68 = 4,327.66/x
  3. Step 3: Cross multiply
    13,689.77x = 20,536.68 × 4,327.66
  4. Step 4: Simplify right side
    13,689.77x = 88,875,816.52
  5. Step 5: Solve for x
    x = 88,875,816.52/13,689.77
  6. Step 6: Final answer
    x = 6,492.13

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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.