Home / 12,976.30-19,476.57-6,655.93

Finding the Fourth Proportional to 12,976.30, 19,476.57 and 6,655.93

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Solution

The fourth proportional to 12,976.30, 19,476.57 and 6,655.93 is: 9,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.30 : 19,476.57 = 6,655.93 : x
  2. Step 2: Convert to fraction form
    12,976.30/19,476.57 = 6,655.93/x
  3. Step 3: Cross multiply
    12,976.30x = 19,476.57 × 6,655.93
  4. Step 4: Simplify right side
    12,976.30x = 129,634,604.59
  5. Step 5: Solve for x
    x = 129,634,604.59/12,976.30
  6. Step 6: Final answer
    x = 9,990.10

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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.