Home / 9,837.40-13,581.27-6,478.99

Finding the Fourth Proportional to 9,837.40, 13,581.27 and 6,478.99

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Solution

The fourth proportional to 9,837.40, 13,581.27 and 6,478.99 is: 8,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,837.40 : 13,581.27 = 6,478.99 : x
  2. Step 2: Convert to fraction form
    9,837.40/13,581.27 = 6,478.99/x
  3. Step 3: Cross multiply
    9,837.40x = 13,581.27 × 6,478.99
  4. Step 4: Simplify right side
    9,837.40x = 87,992,878.56
  5. Step 5: Solve for x
    x = 87,992,878.56/9,837.40
  6. Step 6: Final answer
    x = 8,944.73

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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.