Home / 8,918.40-12,306.07-5,141.27

Finding the Fourth Proportional to 8,918.40, 12,306.07 and 5,141.27

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Solution

The fourth proportional to 8,918.40, 12,306.07 and 5,141.27 is: 7,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.40 : 12,306.07 = 5,141.27 : x
  2. Step 2: Convert to fraction form
    8,918.40/12,306.07 = 5,141.27/x
  3. Step 3: Cross multiply
    8,918.40x = 12,306.07 × 5,141.27
  4. Step 4: Simplify right side
    8,918.40x = 63,268,828.51
  5. Step 5: Solve for x
    x = 63,268,828.51/8,918.40
  6. Step 6: Final answer
    x = 7,094.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.