Home / 10,661.19-14,712.75-5,945.78

Finding the Fourth Proportional to 10,661.19, 14,712.75 and 5,945.78

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Solution

The fourth proportional to 10,661.19, 14,712.75 and 5,945.78 is: 8,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.19 : 14,712.75 = 5,945.78 : x
  2. Step 2: Convert to fraction form
    10,661.19/14,712.75 = 5,945.78/x
  3. Step 3: Cross multiply
    10,661.19x = 14,712.75 × 5,945.78
  4. Step 4: Simplify right side
    10,661.19x = 87,478,671.40
  5. Step 5: Solve for x
    x = 87,478,671.40/10,661.19
  6. Step 6: Final answer
    x = 8,205.34

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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.