Home / 11,949.12-16,485.93-6,642.91

Finding the Fourth Proportional to 11,949.12, 16,485.93 and 6,642.91

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Solution

The fourth proportional to 11,949.12, 16,485.93 and 6,642.91 is: 9,165.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.12 : 16,485.93 = 6,642.91 : x
  2. Step 2: Convert to fraction form
    11,949.12/16,485.93 = 6,642.91/x
  3. Step 3: Cross multiply
    11,949.12x = 16,485.93 × 6,642.91
  4. Step 4: Simplify right side
    11,949.12x = 109,514,549.26
  5. Step 5: Solve for x
    x = 109,514,549.26/11,949.12
  6. Step 6: Final answer
    x = 9,165.07

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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.