Home / 10,579.32-14,591.88-6,990.12

Finding the Fourth Proportional to 10,579.32, 14,591.88 and 6,990.12

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Solution

The fourth proportional to 10,579.32, 14,591.88 and 6,990.12 is: 9,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.32 : 14,591.88 = 6,990.12 : x
  2. Step 2: Convert to fraction form
    10,579.32/14,591.88 = 6,990.12/x
  3. Step 3: Cross multiply
    10,579.32x = 14,591.88 × 6,990.12
  4. Step 4: Simplify right side
    10,579.32x = 101,998,992.23
  5. Step 5: Solve for x
    x = 101,998,992.23/10,579.32
  6. Step 6: Final answer
    x = 9,641.36

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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.