Home / 7,969.31-10,997.13-4,985

Finding the Fourth Proportional to 7,969.31, 10,997.13 and 4,985

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Solution

The fourth proportional to 7,969.31, 10,997.13 and 4,985 is: 6,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.31 : 10,997.13 = 4,985 : x
  2. Step 2: Convert to fraction form
    7,969.31/10,997.13 = 4,985/x
  3. Step 3: Cross multiply
    7,969.31x = 10,997.13 × 4,985
  4. Step 4: Simplify right side
    7,969.31x = 54,820,693.05
  5. Step 5: Solve for x
    x = 54,820,693.05/7,969.31
  6. Step 6: Final answer
    x = 6,878.98

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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.