Home / 10,985.82-15,158.97-6,205.74

Finding the Fourth Proportional to 10,985.82, 15,158.97 and 6,205.74

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Solution

The fourth proportional to 10,985.82, 15,158.97 and 6,205.74 is: 8,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.82 : 15,158.97 = 6,205.74 : x
  2. Step 2: Convert to fraction form
    10,985.82/15,158.97 = 6,205.74/x
  3. Step 3: Cross multiply
    10,985.82x = 15,158.97 × 6,205.74
  4. Step 4: Simplify right side
    10,985.82x = 94,072,626.49
  5. Step 5: Solve for x
    x = 94,072,626.49/10,985.82
  6. Step 6: Final answer
    x = 8,563.10

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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.