Home / 10,855.92-14,977.18-6,605.25

Finding the Fourth Proportional to 10,855.92, 14,977.18 and 6,605.25

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Solution

The fourth proportional to 10,855.92, 14,977.18 and 6,605.25 is: 9,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.92 : 14,977.18 = 6,605.25 : x
  2. Step 2: Convert to fraction form
    10,855.92/14,977.18 = 6,605.25/x
  3. Step 3: Cross multiply
    10,855.92x = 14,977.18 × 6,605.25
  4. Step 4: Simplify right side
    10,855.92x = 98,928,018.20
  5. Step 5: Solve for x
    x = 98,928,018.20/10,855.92
  6. Step 6: Final answer
    x = 9,112.82

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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.