Home / 7,125.36-9,838.47-5,550.72

Finding the Fourth Proportional to 7,125.36, 9,838.47 and 5,550.72

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Solution

The fourth proportional to 7,125.36, 9,838.47 and 5,550.72 is: 7,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.36 : 9,838.47 = 5,550.72 : x
  2. Step 2: Convert to fraction form
    7,125.36/9,838.47 = 5,550.72/x
  3. Step 3: Cross multiply
    7,125.36x = 9,838.47 × 5,550.72
  4. Step 4: Simplify right side
    7,125.36x = 54,610,592.20
  5. Step 5: Solve for x
    x = 54,610,592.20/7,125.36
  6. Step 6: Final answer
    x = 7,664.26

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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.