Home / 11,180.40-15,428.64-6,144.62

Finding the Fourth Proportional to 11,180.40, 15,428.64 and 6,144.62

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Solution

The fourth proportional to 11,180.40, 15,428.64 and 6,144.62 is: 8,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.40 : 15,428.64 = 6,144.62 : x
  2. Step 2: Convert to fraction form
    11,180.40/15,428.64 = 6,144.62/x
  3. Step 3: Cross multiply
    11,180.40x = 15,428.64 × 6,144.62
  4. Step 4: Simplify right side
    11,180.40x = 94,803,145.28
  5. Step 5: Solve for x
    x = 94,803,145.28/11,180.40
  6. Step 6: Final answer
    x = 8,479.40

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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.