Home / 8,790.89-13,186.74-4,892.36

Finding the Fourth Proportional to 8,790.89, 13,186.74 and 4,892.36

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Solution

The fourth proportional to 8,790.89, 13,186.74 and 4,892.36 is: 7,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.89 : 13,186.74 = 4,892.36 : x
  2. Step 2: Convert to fraction form
    8,790.89/13,186.74 = 4,892.36/x
  3. Step 3: Cross multiply
    8,790.89x = 13,186.74 × 4,892.36
  4. Step 4: Simplify right side
    8,790.89x = 64,514,279.31
  5. Step 5: Solve for x
    x = 64,514,279.31/8,790.89
  6. Step 6: Final answer
    x = 7,338.77

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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.