Home / 18,487.36-27,730.23-5,340.28

Finding the Fourth Proportional to 18,487.36, 27,730.23 and 5,340.28

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Solution

The fourth proportional to 18,487.36, 27,730.23 and 5,340.28 is: 8,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.36 : 27,730.23 = 5,340.28 : x
  2. Step 2: Convert to fraction form
    18,487.36/27,730.23 = 5,340.28/x
  3. Step 3: Cross multiply
    18,487.36x = 27,730.23 × 5,340.28
  4. Step 4: Simplify right side
    18,487.36x = 148,087,192.66
  5. Step 5: Solve for x
    x = 148,087,192.66/18,487.36
  6. Step 6: Final answer
    x = 8,010.19

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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.