Home / 11,656.61-16,085.52-6,620.16

Finding the Fourth Proportional to 11,656.61, 16,085.52 and 6,620.16

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Solution

The fourth proportional to 11,656.61, 16,085.52 and 6,620.16 is: 9,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.61 : 16,085.52 = 6,620.16 : x
  2. Step 2: Convert to fraction form
    11,656.61/16,085.52 = 6,620.16/x
  3. Step 3: Cross multiply
    11,656.61x = 16,085.52 × 6,620.16
  4. Step 4: Simplify right side
    11,656.61x = 106,488,776.40
  5. Step 5: Solve for x
    x = 106,488,776.40/11,656.61
  6. Step 6: Final answer
    x = 9,135.49

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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.