Home / 12,172.40-16,796.76-7,455.92

Finding the Fourth Proportional to 12,172.40, 16,796.76 and 7,455.92

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Solution

The fourth proportional to 12,172.40, 16,796.76 and 7,455.92 is: 10,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.40 : 16,796.76 = 7,455.92 : x
  2. Step 2: Convert to fraction form
    12,172.40/16,796.76 = 7,455.92/x
  3. Step 3: Cross multiply
    12,172.40x = 16,796.76 × 7,455.92
  4. Step 4: Simplify right side
    12,172.40x = 125,235,298.82
  5. Step 5: Solve for x
    x = 125,235,298.82/12,172.40
  6. Step 6: Final answer
    x = 10,288.46

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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.