Home / 13,165.47-18,166.73-7,859.25

Finding the Fourth Proportional to 13,165.47, 18,166.73 and 7,859.25

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Solution

The fourth proportional to 13,165.47, 18,166.73 and 7,859.25 is: 10,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.47 : 18,166.73 = 7,859.25 : x
  2. Step 2: Convert to fraction form
    13,165.47/18,166.73 = 7,859.25/x
  3. Step 3: Cross multiply
    13,165.47x = 18,166.73 × 7,859.25
  4. Step 4: Simplify right side
    13,165.47x = 142,776,833.46
  5. Step 5: Solve for x
    x = 142,776,833.46/13,165.47
  6. Step 6: Final answer
    x = 10,844.80

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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.