Home / 13,260.78-19,891.17-4,495.77

Finding the Fourth Proportional to 13,260.78, 19,891.17 and 4,495.77

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Solution

The fourth proportional to 13,260.78, 19,891.17 and 4,495.77 is: 6,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.78 : 19,891.17 = 4,495.77 : x
  2. Step 2: Convert to fraction form
    13,260.78/19,891.17 = 4,495.77/x
  3. Step 3: Cross multiply
    13,260.78x = 19,891.17 × 4,495.77
  4. Step 4: Simplify right side
    13,260.78x = 89,426,125.35
  5. Step 5: Solve for x
    x = 89,426,125.35/13,260.78
  6. Step 6: Final answer
    x = 6,743.66

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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.