Home / 12,521.00-17,278.91-6,778.46

Finding the Fourth Proportional to 12,521.00, 17,278.91 and 6,778.46

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Solution

The fourth proportional to 12,521.00, 17,278.91 and 6,778.46 is: 9,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.00 : 17,278.91 = 6,778.46 : x
  2. Step 2: Convert to fraction form
    12,521.00/17,278.91 = 6,778.46/x
  3. Step 3: Cross multiply
    12,521.00x = 17,278.91 × 6,778.46
  4. Step 4: Simplify right side
    12,521.00x = 117,124,330.83
  5. Step 5: Solve for x
    x = 117,124,330.83/12,521.00
  6. Step 6: Final answer
    x = 9,354.24

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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.