Home / 7,828.88-10,802.52-5,174.87

Finding the Fourth Proportional to 7,828.88, 10,802.52 and 5,174.87

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Solution

The fourth proportional to 7,828.88, 10,802.52 and 5,174.87 is: 7,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.88 : 10,802.52 = 5,174.87 : x
  2. Step 2: Convert to fraction form
    7,828.88/10,802.52 = 5,174.87/x
  3. Step 3: Cross multiply
    7,828.88x = 10,802.52 × 5,174.87
  4. Step 4: Simplify right side
    7,828.88x = 55,901,582.66
  5. Step 5: Solve for x
    x = 55,901,582.66/7,828.88
  6. Step 6: Final answer
    x = 7,140.44

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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.