Home / 12,658.31-17,468.40-6,993.45

Finding the Fourth Proportional to 12,658.31, 17,468.40 and 6,993.45

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Solution

The fourth proportional to 12,658.31, 17,468.40 and 6,993.45 is: 9,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.31 : 17,468.40 = 6,993.45 : x
  2. Step 2: Convert to fraction form
    12,658.31/17,468.40 = 6,993.45/x
  3. Step 3: Cross multiply
    12,658.31x = 17,468.40 × 6,993.45
  4. Step 4: Simplify right side
    12,658.31x = 122,164,381.98
  5. Step 5: Solve for x
    x = 122,164,381.98/12,658.31
  6. Step 6: Final answer
    x = 9,650.92

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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.