Home / 10,136.96-15,206.90-3,117.56

Finding the Fourth Proportional to 10,136.96, 15,206.90 and 3,117.56

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Solution

The fourth proportional to 10,136.96, 15,206.90 and 3,117.56 is: 4,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.96 : 15,206.90 = 3,117.56 : x
  2. Step 2: Convert to fraction form
    10,136.96/15,206.90 = 3,117.56/x
  3. Step 3: Cross multiply
    10,136.96x = 15,206.90 × 3,117.56
  4. Step 4: Simplify right side
    10,136.96x = 47,408,479.00
  5. Step 5: Solve for x
    x = 47,408,479.00/10,136.96
  6. Step 6: Final answer
    x = 4,676.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.