Home / 18,386.16-27,580.89-7,141.23

Finding the Fourth Proportional to 18,386.16, 27,580.89 and 7,141.23

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Solution

The fourth proportional to 18,386.16, 27,580.89 and 7,141.23 is: 10,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.16 : 27,580.89 = 7,141.23 : x
  2. Step 2: Convert to fraction form
    18,386.16/27,580.89 = 7,141.23/x
  3. Step 3: Cross multiply
    18,386.16x = 27,580.89 × 7,141.23
  4. Step 4: Simplify right side
    18,386.16x = 196,961,512.34
  5. Step 5: Solve for x
    x = 196,961,512.34/18,386.16
  6. Step 6: Final answer
    x = 10,712.49

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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.