Home / 10,285.37-14,180.09-7,722.28

Finding the Fourth Proportional to 10,285.37, 14,180.09 and 7,722.28

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Solution

The fourth proportional to 10,285.37, 14,180.09 and 7,722.28 is: 10,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.37 : 14,180.09 = 7,722.28 : x
  2. Step 2: Convert to fraction form
    10,285.37/14,180.09 = 7,722.28/x
  3. Step 3: Cross multiply
    10,285.37x = 14,180.09 × 7,722.28
  4. Step 4: Simplify right side
    10,285.37x = 109,502,625.41
  5. Step 5: Solve for x
    x = 109,502,625.41/10,285.37
  6. Step 6: Final answer
    x = 10,646.44

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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.