Home / 10,869.36-14,992.32-6,617.49

Finding the Fourth Proportional to 10,869.36, 14,992.32 and 6,617.49

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Solution

The fourth proportional to 10,869.36, 14,992.32 and 6,617.49 is: 9,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.36 : 14,992.32 = 6,617.49 : x
  2. Step 2: Convert to fraction form
    10,869.36/14,992.32 = 6,617.49/x
  3. Step 3: Cross multiply
    10,869.36x = 14,992.32 × 6,617.49
  4. Step 4: Simplify right side
    10,869.36x = 99,211,527.68
  5. Step 5: Solve for x
    x = 99,211,527.68/10,869.36
  6. Step 6: Final answer
    x = 9,127.63

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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.