Home / 19,538.53-26,962.55-11,155.03

Finding the Fourth Proportional to 19,538.53, 26,962.55 and 11,155.03

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Solution

The fourth proportional to 19,538.53, 26,962.55 and 11,155.03 is: 15,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.53 : 26,962.55 = 11,155.03 : x
  2. Step 2: Convert to fraction form
    19,538.53/26,962.55 = 11,155.03/x
  3. Step 3: Cross multiply
    19,538.53x = 26,962.55 × 11,155.03
  4. Step 4: Simplify right side
    19,538.53x = 300,767,998.35
  5. Step 5: Solve for x
    x = 300,767,998.35/19,538.53
  6. Step 6: Final answer
    x = 15,393.58

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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.