Home / 13,688.76-20,536.22-4,329.35

Finding the Fourth Proportional to 13,688.76, 20,536.22 and 4,329.35

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Solution

The fourth proportional to 13,688.76, 20,536.22 and 4,329.35 is: 6,494.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.76 : 20,536.22 = 4,329.35 : x
  2. Step 2: Convert to fraction form
    13,688.76/20,536.22 = 4,329.35/x
  3. Step 3: Cross multiply
    13,688.76x = 20,536.22 × 4,329.35
  4. Step 4: Simplify right side
    13,688.76x = 88,908,392.20
  5. Step 5: Solve for x
    x = 88,908,392.20/13,688.76
  6. Step 6: Final answer
    x = 6,494.99

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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.