Home / 11,153.78-15,392.65-6,118.22

Finding the Fourth Proportional to 11,153.78, 15,392.65 and 6,118.22

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Solution

The fourth proportional to 11,153.78, 15,392.65 and 6,118.22 is: 8,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.78 : 15,392.65 = 6,118.22 : x
  2. Step 2: Convert to fraction form
    11,153.78/15,392.65 = 6,118.22/x
  3. Step 3: Cross multiply
    11,153.78x = 15,392.65 × 6,118.22
  4. Step 4: Simplify right side
    11,153.78x = 94,175,567.16
  5. Step 5: Solve for x
    x = 94,175,567.16/11,153.78
  6. Step 6: Final answer
    x = 8,443.37

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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.