Home / 11,146.72-16,718.88-4,572.40

Finding the Fourth Proportional to 11,146.72, 16,718.88 and 4,572.40

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Solution

The fourth proportional to 11,146.72, 16,718.88 and 4,572.40 is: 6,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.72 : 16,718.88 = 4,572.40 : x
  2. Step 2: Convert to fraction form
    11,146.72/16,718.88 = 4,572.40/x
  3. Step 3: Cross multiply
    11,146.72x = 16,718.88 × 4,572.40
  4. Step 4: Simplify right side
    11,146.72x = 76,445,406.91
  5. Step 5: Solve for x
    x = 76,445,406.91/11,146.72
  6. Step 6: Final answer
    x = 6,858.11

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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.