Home / 13,715.50-20,576.07-4,355.32

Finding the Fourth Proportional to 13,715.50, 20,576.07 and 4,355.32

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Solution

The fourth proportional to 13,715.50, 20,576.07 and 4,355.32 is: 6,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.50 : 20,576.07 = 4,355.32 : x
  2. Step 2: Convert to fraction form
    13,715.50/20,576.07 = 4,355.32/x
  3. Step 3: Cross multiply
    13,715.50x = 20,576.07 × 4,355.32
  4. Step 4: Simplify right side
    13,715.50x = 89,615,369.19
  5. Step 5: Solve for x
    x = 89,615,369.19/13,715.50
  6. Step 6: Final answer
    x = 6,533.88

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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.