Home / 11,103.33-15,323.28-6,387.51

Finding the Fourth Proportional to 11,103.33, 15,323.28 and 6,387.51

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Solution

The fourth proportional to 11,103.33, 15,323.28 and 6,387.51 is: 8,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.33 : 15,323.28 = 6,387.51 : x
  2. Step 2: Convert to fraction form
    11,103.33/15,323.28 = 6,387.51/x
  3. Step 3: Cross multiply
    11,103.33x = 15,323.28 × 6,387.51
  4. Step 4: Simplify right side
    11,103.33x = 97,877,604.23
  5. Step 5: Solve for x
    x = 97,877,604.23/11,103.33
  6. Step 6: Final answer
    x = 8,815.16

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1.5x scale

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.