Home / 18,240.77-27,341.10-7,145.39

Finding the Fourth Proportional to 18,240.77, 27,341.10 and 7,145.39

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Solution

The fourth proportional to 18,240.77, 27,341.10 and 7,145.39 is: 10,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.77 : 27,341.10 = 7,145.39 : x
  2. Step 2: Convert to fraction form
    18,240.77/27,341.10 = 7,145.39/x
  3. Step 3: Cross multiply
    18,240.77x = 27,341.10 × 7,145.39
  4. Step 4: Simplify right side
    18,240.77x = 195,362,685.82
  5. Step 5: Solve for x
    x = 195,362,685.82/18,240.77
  6. Step 6: Final answer
    x = 10,710.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.