Home / 13,177.72-19,776.32-10,611.64

Finding the Fourth Proportional to 13,177.72, 19,776.32 and 10,611.64

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Solution

The fourth proportional to 13,177.72, 19,776.32 and 10,611.64 is: 15,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.72 : 19,776.32 = 10,611.64 : x
  2. Step 2: Convert to fraction form
    13,177.72/19,776.32 = 10,611.64/x
  3. Step 3: Cross multiply
    13,177.72x = 19,776.32 × 10,611.64
  4. Step 4: Simplify right side
    13,177.72x = 209,859,188.36
  5. Step 5: Solve for x
    x = 209,859,188.36/13,177.72
  6. Step 6: Final answer
    x = 15,925.30

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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.