Home / 13,305.20-19,961.27-4,985.34

Finding the Fourth Proportional to 13,305.20, 19,961.27 and 4,985.34

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Solution

The fourth proportional to 13,305.20, 19,961.27 and 4,985.34 is: 7,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.20 : 19,961.27 = 4,985.34 : x
  2. Step 2: Convert to fraction form
    13,305.20/19,961.27 = 4,985.34/x
  3. Step 3: Cross multiply
    13,305.20x = 19,961.27 × 4,985.34
  4. Step 4: Simplify right side
    13,305.20x = 99,513,717.78
  5. Step 5: Solve for x
    x = 99,513,717.78/13,305.20
  6. Step 6: Final answer
    x = 7,479.31

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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.