Home / 15,136.23-20,853.93-11,353.53

Finding the Fourth Proportional to 15,136.23, 20,853.93 and 11,353.53

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Solution

The fourth proportional to 15,136.23, 20,853.93 and 11,353.53 is: 15,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.23 : 20,853.93 = 11,353.53 : x
  2. Step 2: Convert to fraction form
    15,136.23/20,853.93 = 11,353.53/x
  3. Step 3: Cross multiply
    15,136.23x = 20,853.93 × 11,353.53
  4. Step 4: Simplify right side
    15,136.23x = 236,765,719.87
  5. Step 5: Solve for x
    x = 236,765,719.87/15,136.23
  6. Step 6: Final answer
    x = 15,642.32

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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.