Home / 13,100.39-19,653.47-3,740.19

Finding the Fourth Proportional to 13,100.39, 19,653.47 and 3,740.19

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Solution

The fourth proportional to 13,100.39, 19,653.47 and 3,740.19 is: 5,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.39 : 19,653.47 = 3,740.19 : x
  2. Step 2: Convert to fraction form
    13,100.39/19,653.47 = 3,740.19/x
  3. Step 3: Cross multiply
    13,100.39x = 19,653.47 × 3,740.19
  4. Step 4: Simplify right side
    13,100.39x = 73,507,693.26
  5. Step 5: Solve for x
    x = 73,507,693.26/13,100.39
  6. Step 6: Final answer
    x = 5,611.11

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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.