Home / 11,145.78-16,718.70-4,572.06

Finding the Fourth Proportional to 11,145.78, 16,718.70 and 4,572.06

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Solution

The fourth proportional to 11,145.78, 16,718.70 and 4,572.06 is: 6,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.78 : 16,718.70 = 4,572.06 : x
  2. Step 2: Convert to fraction form
    11,145.78/16,718.70 = 4,572.06/x
  3. Step 3: Cross multiply
    11,145.78x = 16,718.70 × 4,572.06
  4. Step 4: Simplify right side
    11,145.78x = 76,438,899.52
  5. Step 5: Solve for x
    x = 76,438,899.52/11,145.78
  6. Step 6: Final answer
    x = 6,858.10

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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.