Home / 18,254.81-27,386.85-5,107.25

Finding the Fourth Proportional to 18,254.81, 27,386.85 and 5,107.25

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Solution

The fourth proportional to 18,254.81, 27,386.85 and 5,107.25 is: 7,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.81 : 27,386.85 = 5,107.25 : x
  2. Step 2: Convert to fraction form
    18,254.81/27,386.85 = 5,107.25/x
  3. Step 3: Cross multiply
    18,254.81x = 27,386.85 × 5,107.25
  4. Step 4: Simplify right side
    18,254.81x = 139,871,489.66
  5. Step 5: Solve for x
    x = 139,871,489.66/18,254.81
  6. Step 6: Final answer
    x = 7,662.17

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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.