Home / 12,820.55-19,232.18-5,323.26

Finding the Fourth Proportional to 12,820.55, 19,232.18 and 5,323.26

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Solution

The fourth proportional to 12,820.55, 19,232.18 and 5,323.26 is: 7,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.55 : 19,232.18 = 5,323.26 : x
  2. Step 2: Convert to fraction form
    12,820.55/19,232.18 = 5,323.26/x
  3. Step 3: Cross multiply
    12,820.55x = 19,232.18 × 5,323.26
  4. Step 4: Simplify right side
    12,820.55x = 102,377,867.89
  5. Step 5: Solve for x
    x = 102,377,867.89/12,820.55
  6. Step 6: Final answer
    x = 7,985.45

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Similar ratio
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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.