Home / 7,979.47-11,012.98-6,087.48

Finding the Fourth Proportional to 7,979.47, 11,012.98 and 6,087.48

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Solution

The fourth proportional to 7,979.47, 11,012.98 and 6,087.48 is: 8,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.47 : 11,012.98 = 6,087.48 : x
  2. Step 2: Convert to fraction form
    7,979.47/11,012.98 = 6,087.48/x
  3. Step 3: Cross multiply
    7,979.47x = 11,012.98 × 6,087.48
  4. Step 4: Simplify right side
    7,979.47x = 67,041,295.49
  5. Step 5: Solve for x
    x = 67,041,295.49/7,979.47
  6. Step 6: Final answer
    x = 8,401.72

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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.