Home / 11,798.06-16,290.72-9,140.85

Finding the Fourth Proportional to 11,798.06, 16,290.72 and 9,140.85

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Solution

The fourth proportional to 11,798.06, 16,290.72 and 9,140.85 is: 12,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.06 : 16,290.72 = 9,140.85 : x
  2. Step 2: Convert to fraction form
    11,798.06/16,290.72 = 9,140.85/x
  3. Step 3: Cross multiply
    11,798.06x = 16,290.72 × 9,140.85
  4. Step 4: Simplify right side
    11,798.06x = 148,911,027.91
  5. Step 5: Solve for x
    x = 148,911,027.91/11,798.06
  6. Step 6: Final answer
    x = 12,621.66

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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.