Home / 12,738.30-17,595.68-10,620.77

Finding the Fourth Proportional to 12,738.30, 17,595.68 and 10,620.77

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Solution

The fourth proportional to 12,738.30, 17,595.68 and 10,620.77 is: 14,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.30 : 17,595.68 = 10,620.77 : x
  2. Step 2: Convert to fraction form
    12,738.30/17,595.68 = 10,620.77/x
  3. Step 3: Cross multiply
    12,738.30x = 17,595.68 × 10,620.77
  4. Step 4: Simplify right side
    12,738.30x = 186,879,529.19
  5. Step 5: Solve for x
    x = 186,879,529.19/12,738.30
  6. Step 6: Final answer
    x = 14,670.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.