Home / 13,517.64-20,285.18-6,588.36

Finding the Fourth Proportional to 13,517.64, 20,285.18 and 6,588.36

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Solution

The fourth proportional to 13,517.64, 20,285.18 and 6,588.36 is: 9,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.64 : 20,285.18 = 6,588.36 : x
  2. Step 2: Convert to fraction form
    13,517.64/20,285.18 = 6,588.36/x
  3. Step 3: Cross multiply
    13,517.64x = 20,285.18 × 6,588.36
  4. Step 4: Simplify right side
    13,517.64x = 133,646,068.50
  5. Step 5: Solve for x
    x = 133,646,068.50/13,517.64
  6. Step 6: Final answer
    x = 9,886.79

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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.