Home / 13,703.56-20,560.80-8,159.52

Finding the Fourth Proportional to 13,703.56, 20,560.80 and 8,159.52

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Solution

The fourth proportional to 13,703.56, 20,560.80 and 8,159.52 is: 12,242.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.56 : 20,560.80 = 8,159.52 : x
  2. Step 2: Convert to fraction form
    13,703.56/20,560.80 = 8,159.52/x
  3. Step 3: Cross multiply
    13,703.56x = 20,560.80 × 8,159.52
  4. Step 4: Simplify right side
    13,703.56x = 167,766,258.82
  5. Step 5: Solve for x
    x = 167,766,258.82/13,703.56
  6. Step 6: Final answer
    x = 12,242.53

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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.