Home / 13,056.90-18,019.40-7,391.64

Finding the Fourth Proportional to 13,056.90, 18,019.40 and 7,391.64

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Solution

The fourth proportional to 13,056.90, 18,019.40 and 7,391.64 is: 10,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.90 : 18,019.40 = 7,391.64 : x
  2. Step 2: Convert to fraction form
    13,056.90/18,019.40 = 7,391.64/x
  3. Step 3: Cross multiply
    13,056.90x = 18,019.40 × 7,391.64
  4. Step 4: Simplify right side
    13,056.90x = 133,192,917.82
  5. Step 5: Solve for x
    x = 133,192,917.82/13,056.90
  6. Step 6: Final answer
    x = 10,200.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.