Home / 7,979.34-11,012.81-6,087.35

Finding the Fourth Proportional to 7,979.34, 11,012.81 and 6,087.35

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Solution

The fourth proportional to 7,979.34, 11,012.81 and 6,087.35 is: 8,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.34 : 11,012.81 = 6,087.35 : x
  2. Step 2: Convert to fraction form
    7,979.34/11,012.81 = 6,087.35/x
  3. Step 3: Cross multiply
    7,979.34x = 11,012.81 × 6,087.35
  4. Step 4: Simplify right side
    7,979.34x = 67,038,828.95
  5. Step 5: Solve for x
    x = 67,038,828.95/7,979.34
  6. Step 6: Final answer
    x = 8,401.55

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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.