Home / 13,280.96-19,909.56-5,484.80

Finding the Fourth Proportional to 13,280.96, 19,909.56 and 5,484.80

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Solution

The fourth proportional to 13,280.96, 19,909.56 and 5,484.80 is: 8,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.96 : 19,909.56 = 5,484.80 : x
  2. Step 2: Convert to fraction form
    13,280.96/19,909.56 = 5,484.80/x
  3. Step 3: Cross multiply
    13,280.96x = 19,909.56 × 5,484.80
  4. Step 4: Simplify right side
    13,280.96x = 109,199,954.69
  5. Step 5: Solve for x
    x = 109,199,954.69/13,280.96
  6. Step 6: Final answer
    x = 8,222.29

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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.