Home / 11,743.30-16,206.77-6,439.15

Finding the Fourth Proportional to 11,743.30, 16,206.77 and 6,439.15

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Solution

The fourth proportional to 11,743.30, 16,206.77 and 6,439.15 is: 8,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.30 : 16,206.77 = 6,439.15 : x
  2. Step 2: Convert to fraction form
    11,743.30/16,206.77 = 6,439.15/x
  3. Step 3: Cross multiply
    11,743.30x = 16,206.77 × 6,439.15
  4. Step 4: Simplify right side
    11,743.30x = 104,357,798.63
  5. Step 5: Solve for x
    x = 104,357,798.63/11,743.30
  6. Step 6: Final answer
    x = 8,886.58

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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.