Home / 11,620.40-16,036.45-6,840.59

Finding the Fourth Proportional to 11,620.40, 16,036.45 and 6,840.59

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Solution

The fourth proportional to 11,620.40, 16,036.45 and 6,840.59 is: 9,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.40 : 16,036.45 = 6,840.59 : x
  2. Step 2: Convert to fraction form
    11,620.40/16,036.45 = 6,840.59/x
  3. Step 3: Cross multiply
    11,620.40x = 16,036.45 × 6,840.59
  4. Step 4: Simplify right side
    11,620.40x = 109,698,682.22
  5. Step 5: Solve for x
    x = 109,698,682.22/11,620.40
  6. Step 6: Final answer
    x = 9,440.19

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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.