Home / 13,731.36-20,580.64-6,328.36

Finding the Fourth Proportional to 13,731.36, 20,580.64 and 6,328.36

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Solution

The fourth proportional to 13,731.36, 20,580.64 and 6,328.36 is: 9,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.36 : 20,580.64 = 6,328.36 : x
  2. Step 2: Convert to fraction form
    13,731.36/20,580.64 = 6,328.36/x
  3. Step 3: Cross multiply
    13,731.36x = 20,580.64 × 6,328.36
  4. Step 4: Simplify right side
    13,731.36x = 130,241,698.95
  5. Step 5: Solve for x
    x = 130,241,698.95/13,731.36
  6. Step 6: Final answer
    x = 9,484.98

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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.