Home / 10,136.96-13,988.58-5,885.36

Finding the Fourth Proportional to 10,136.96, 13,988.58 and 5,885.36

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Solution

The fourth proportional to 10,136.96, 13,988.58 and 5,885.36 is: 8,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.96 : 13,988.58 = 5,885.36 : x
  2. Step 2: Convert to fraction form
    10,136.96/13,988.58 = 5,885.36/x
  3. Step 3: Cross multiply
    10,136.96x = 13,988.58 × 5,885.36
  4. Step 4: Simplify right side
    10,136.96x = 82,327,829.19
  5. Step 5: Solve for x
    x = 82,327,829.19/10,136.96
  6. Step 6: Final answer
    x = 8,121.55

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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.