Home / 13,205.20-19,783.80-6,264.40

Finding the Fourth Proportional to 13,205.20, 19,783.80 and 6,264.40

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Solution

The fourth proportional to 13,205.20, 19,783.80 and 6,264.40 is: 9,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.20 : 19,783.80 = 6,264.40 : x
  2. Step 2: Convert to fraction form
    13,205.20/19,783.80 = 6,264.40/x
  3. Step 3: Cross multiply
    13,205.20x = 19,783.80 × 6,264.40
  4. Step 4: Simplify right side
    13,205.20x = 123,933,636.72
  5. Step 5: Solve for x
    x = 123,933,636.72/13,205.20
  6. Step 6: Final answer
    x = 9,385.21

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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.