Home / 7,192.51-9,925.68-4,005.78

Finding the Fourth Proportional to 7,192.51, 9,925.68 and 4,005.78

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Solution

The fourth proportional to 7,192.51, 9,925.68 and 4,005.78 is: 5,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.51 : 9,925.68 = 4,005.78 : x
  2. Step 2: Convert to fraction form
    7,192.51/9,925.68 = 4,005.78/x
  3. Step 3: Cross multiply
    7,192.51x = 9,925.68 × 4,005.78
  4. Step 4: Simplify right side
    7,192.51x = 39,760,090.43
  5. Step 5: Solve for x
    x = 39,760,090.43/7,192.51
  6. Step 6: Final answer
    x = 5,527.99

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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.