Home / 10,781.94-14,881.29-6,999.84

Finding the Fourth Proportional to 10,781.94, 14,881.29 and 6,999.84

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Solution

The fourth proportional to 10,781.94, 14,881.29 and 6,999.84 is: 9,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.94 : 14,881.29 = 6,999.84 : x
  2. Step 2: Convert to fraction form
    10,781.94/14,881.29 = 6,999.84/x
  3. Step 3: Cross multiply
    10,781.94x = 14,881.29 × 6,999.84
  4. Step 4: Simplify right side
    10,781.94x = 104,166,648.99
  5. Step 5: Solve for x
    x = 104,166,648.99/10,781.94
  6. Step 6: Final answer
    x = 9,661.22

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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.