Home / 13,516.64-20,283.68-6,587.36

Finding the Fourth Proportional to 13,516.64, 20,283.68 and 6,587.36

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Solution

The fourth proportional to 13,516.64, 20,283.68 and 6,587.36 is: 9,885.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.64 : 20,283.68 = 6,587.36 : x
  2. Step 2: Convert to fraction form
    13,516.64/20,283.68 = 6,587.36/x
  3. Step 3: Cross multiply
    13,516.64x = 20,283.68 × 6,587.36
  4. Step 4: Simplify right side
    13,516.64x = 133,615,902.28
  5. Step 5: Solve for x
    x = 133,615,902.28/13,516.64
  6. Step 6: Final answer
    x = 9,885.29

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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.