Home / 12,972.36-19,459.20-6,314.98

Finding the Fourth Proportional to 12,972.36, 19,459.20 and 6,314.98

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Solution

The fourth proportional to 12,972.36, 19,459.20 and 6,314.98 is: 9,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.36 : 19,459.20 = 6,314.98 : x
  2. Step 2: Convert to fraction form
    12,972.36/19,459.20 = 6,314.98/x
  3. Step 3: Cross multiply
    12,972.36x = 19,459.20 × 6,314.98
  4. Step 4: Simplify right side
    12,972.36x = 122,884,458.82
  5. Step 5: Solve for x
    x = 122,884,458.82/12,972.36
  6. Step 6: Final answer
    x = 9,472.79

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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.