Home / 11,693.08-16,136.40-6,387.88

Finding the Fourth Proportional to 11,693.08, 16,136.40 and 6,387.88

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Solution

The fourth proportional to 11,693.08, 16,136.40 and 6,387.88 is: 8,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.08 : 16,136.40 = 6,387.88 : x
  2. Step 2: Convert to fraction form
    11,693.08/16,136.40 = 6,387.88/x
  3. Step 3: Cross multiply
    11,693.08x = 16,136.40 × 6,387.88
  4. Step 4: Simplify right side
    11,693.08x = 103,077,386.83
  5. Step 5: Solve for x
    x = 103,077,386.83/11,693.08
  6. Step 6: Final answer
    x = 8,815.25

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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.