Home / 13,476.40-20,195.40-9,938.80

Finding the Fourth Proportional to 13,476.40, 20,195.40 and 9,938.80

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Solution

The fourth proportional to 13,476.40, 20,195.40 and 9,938.80 is: 14,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.40 : 20,195.40 = 9,938.80 : x
  2. Step 2: Convert to fraction form
    13,476.40/20,195.40 = 9,938.80/x
  3. Step 3: Cross multiply
    13,476.40x = 20,195.40 × 9,938.80
  4. Step 4: Simplify right side
    13,476.40x = 200,718,041.52
  5. Step 5: Solve for x
    x = 200,718,041.52/13,476.40
  6. Step 6: Final answer
    x = 14,894.04

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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.