Home / 18,140.16-27,216.29-7,047.21

Finding the Fourth Proportional to 18,140.16, 27,216.29 and 7,047.21

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Solution

The fourth proportional to 18,140.16, 27,216.29 and 7,047.21 is: 10,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.16 : 27,216.29 = 7,047.21 : x
  2. Step 2: Convert to fraction form
    18,140.16/27,216.29 = 7,047.21/x
  3. Step 3: Cross multiply
    18,140.16x = 27,216.29 × 7,047.21
  4. Step 4: Simplify right side
    18,140.16x = 191,798,911.05
  5. Step 5: Solve for x
    x = 191,798,911.05/18,140.16
  6. Step 6: Final answer
    x = 10,573.17

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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.