Home / 13,535.26-20,274.09-7,688.86

Finding the Fourth Proportional to 13,535.26, 20,274.09 and 7,688.86

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Solution

The fourth proportional to 13,535.26, 20,274.09 and 7,688.86 is: 11,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.26 : 20,274.09 = 7,688.86 : x
  2. Step 2: Convert to fraction form
    13,535.26/20,274.09 = 7,688.86/x
  3. Step 3: Cross multiply
    13,535.26x = 20,274.09 × 7,688.86
  4. Step 4: Simplify right side
    13,535.26x = 155,884,639.64
  5. Step 5: Solve for x
    x = 155,884,639.64/13,535.26
  6. Step 6: Final answer
    x = 11,516.93

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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.