Home / 19,113.44-28,655.28-9,113.04

Finding the Fourth Proportional to 19,113.44, 28,655.28 and 9,113.04

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Solution

The fourth proportional to 19,113.44, 28,655.28 and 9,113.04 is: 13,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.44 : 28,655.28 = 9,113.04 : x
  2. Step 2: Convert to fraction form
    19,113.44/28,655.28 = 9,113.04/x
  3. Step 3: Cross multiply
    19,113.44x = 28,655.28 × 9,113.04
  4. Step 4: Simplify right side
    19,113.44x = 261,136,712.85
  5. Step 5: Solve for x
    x = 261,136,712.85/19,113.44
  6. Step 6: Final answer
    x = 13,662.47

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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.