Home / 15,136.79-22,705.20-7,237.45

Finding the Fourth Proportional to 15,136.79, 22,705.20 and 7,237.45

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Solution

The fourth proportional to 15,136.79, 22,705.20 and 7,237.45 is: 10,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.79 : 22,705.20 = 7,237.45 : x
  2. Step 2: Convert to fraction form
    15,136.79/22,705.20 = 7,237.45/x
  3. Step 3: Cross multiply
    15,136.79x = 22,705.20 × 7,237.45
  4. Step 4: Simplify right side
    15,136.79x = 164,327,778.12
  5. Step 5: Solve for x
    x = 164,327,778.12/15,136.79
  6. Step 6: Final answer
    x = 10,856.19

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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.