Home / 13,701.60-20,557.32-7,127.64

Finding the Fourth Proportional to 13,701.60, 20,557.32 and 7,127.64

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Solution

The fourth proportional to 13,701.60, 20,557.32 and 7,127.64 is: 10,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.60 : 20,557.32 = 7,127.64 : x
  2. Step 2: Convert to fraction form
    13,701.60/20,557.32 = 7,127.64/x
  3. Step 3: Cross multiply
    13,701.60x = 20,557.32 × 7,127.64
  4. Step 4: Simplify right side
    13,701.60x = 146,525,176.32
  5. Step 5: Solve for x
    x = 146,525,176.32/13,701.60
  6. Step 6: Final answer
    x = 10,694.02

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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.