Home / 11,693.60-16,136.48-6,387.36

Finding the Fourth Proportional to 11,693.60, 16,136.48 and 6,387.36

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Solution

The fourth proportional to 11,693.60, 16,136.48 and 6,387.36 is: 8,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.60 : 16,136.48 = 6,387.36 : x
  2. Step 2: Convert to fraction form
    11,693.60/16,136.48 = 6,387.36/x
  3. Step 3: Cross multiply
    11,693.60x = 16,136.48 × 6,387.36
  4. Step 4: Simplify right side
    11,693.60x = 103,069,506.89
  5. Step 5: Solve for x
    x = 103,069,506.89/11,693.60
  6. Step 6: Final answer
    x = 8,814.18

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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.