Home / 7,867.70-10,857.68-4,331.18

Finding the Fourth Proportional to 7,867.70, 10,857.68 and 4,331.18

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Solution

The fourth proportional to 7,867.70, 10,857.68 and 4,331.18 is: 5,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.70 : 10,857.68 = 4,331.18 : x
  2. Step 2: Convert to fraction form
    7,867.70/10,857.68 = 4,331.18/x
  3. Step 3: Cross multiply
    7,867.70x = 10,857.68 × 4,331.18
  4. Step 4: Simplify right side
    7,867.70x = 47,026,501.35
  5. Step 5: Solve for x
    x = 47,026,501.35/7,867.70
  6. Step 6: Final answer
    x = 5,977.16

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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.