Home / 18,254.31-27,386.09-5,106.75

Finding the Fourth Proportional to 18,254.31, 27,386.09 and 5,106.75

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Solution

The fourth proportional to 18,254.31, 27,386.09 and 5,106.75 is: 7,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.31 : 27,386.09 = 5,106.75 : x
  2. Step 2: Convert to fraction form
    18,254.31/27,386.09 = 5,106.75/x
  3. Step 3: Cross multiply
    18,254.31x = 27,386.09 × 5,106.75
  4. Step 4: Simplify right side
    18,254.31x = 139,853,915.11
  5. Step 5: Solve for x
    x = 139,853,915.11/18,254.31
  6. Step 6: Final answer
    x = 7,661.42

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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.