Home / 12,178.53-18,253.96-5,154.16

Finding the Fourth Proportional to 12,178.53, 18,253.96 and 5,154.16

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Solution

The fourth proportional to 12,178.53, 18,253.96 and 5,154.16 is: 7,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.53 : 18,253.96 = 5,154.16 : x
  2. Step 2: Convert to fraction form
    12,178.53/18,253.96 = 5,154.16/x
  3. Step 3: Cross multiply
    12,178.53x = 18,253.96 × 5,154.16
  4. Step 4: Simplify right side
    12,178.53x = 94,083,830.47
  5. Step 5: Solve for x
    x = 94,083,830.47/12,178.53
  6. Step 6: Final answer
    x = 7,725.38

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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.