Home / 10,755.74-14,828.85-7,772.28

Finding the Fourth Proportional to 10,755.74, 14,828.85 and 7,772.28

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Solution

The fourth proportional to 10,755.74, 14,828.85 and 7,772.28 is: 10,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,755.74 : 14,828.85 = 7,772.28 : x
  2. Step 2: Convert to fraction form
    10,755.74/14,828.85 = 7,772.28/x
  3. Step 3: Cross multiply
    10,755.74x = 14,828.85 × 7,772.28
  4. Step 4: Simplify right side
    10,755.74x = 115,253,974.28
  5. Step 5: Solve for x
    x = 115,253,974.28/10,755.74
  6. Step 6: Final answer
    x = 10,715.58

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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.