Home / 13,903.39-19,186.93-7,615.36

Finding the Fourth Proportional to 13,903.39, 19,186.93 and 7,615.36

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Solution

The fourth proportional to 13,903.39, 19,186.93 and 7,615.36 is: 10,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.39 : 19,186.93 = 7,615.36 : x
  2. Step 2: Convert to fraction form
    13,903.39/19,186.93 = 7,615.36/x
  3. Step 3: Cross multiply
    13,903.39x = 19,186.93 × 7,615.36
  4. Step 4: Simplify right side
    13,903.39x = 146,115,379.24
  5. Step 5: Solve for x
    x = 146,115,379.24/13,903.39
  6. Step 6: Final answer
    x = 10,509.33

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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.