Home / 17,730.72-26,600.40-5,418.72

Finding the Fourth Proportional to 17,730.72, 26,600.40 and 5,418.72

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Solution

The fourth proportional to 17,730.72, 26,600.40 and 5,418.72 is: 8,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,730.72 : 26,600.40 = 5,418.72 : x
  2. Step 2: Convert to fraction form
    17,730.72/26,600.40 = 5,418.72/x
  3. Step 3: Cross multiply
    17,730.72x = 26,600.40 × 5,418.72
  4. Step 4: Simplify right side
    17,730.72x = 144,140,119.49
  5. Step 5: Solve for x
    x = 144,140,119.49/17,730.72
  6. Step 6: Final answer
    x = 8,129.40

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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.