Home / 13,746.50-20,609.64-4,381.13

Finding the Fourth Proportional to 13,746.50, 20,609.64 and 4,381.13

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Solution

The fourth proportional to 13,746.50, 20,609.64 and 4,381.13 is: 6,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.50 : 20,609.64 = 4,381.13 : x
  2. Step 2: Convert to fraction form
    13,746.50/20,609.64 = 4,381.13/x
  3. Step 3: Cross multiply
    13,746.50x = 20,609.64 × 4,381.13
  4. Step 4: Simplify right side
    13,746.50x = 90,293,409.05
  5. Step 5: Solve for x
    x = 90,293,409.05/13,746.50
  6. Step 6: Final answer
    x = 6,568.47

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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.