Home / 12,000.45-16,555.14-7,521.96

Finding the Fourth Proportional to 12,000.45, 16,555.14 and 7,521.96

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Solution

The fourth proportional to 12,000.45, 16,555.14 and 7,521.96 is: 10,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.45 : 16,555.14 = 7,521.96 : x
  2. Step 2: Convert to fraction form
    12,000.45/16,555.14 = 7,521.96/x
  3. Step 3: Cross multiply
    12,000.45x = 16,555.14 × 7,521.96
  4. Step 4: Simplify right side
    12,000.45x = 124,527,100.87
  5. Step 5: Solve for x
    x = 124,527,100.87/12,000.45
  6. Step 6: Final answer
    x = 10,376.87

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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.