Home / 13,507.79-20,245.28-9,560.20

Finding the Fourth Proportional to 13,507.79, 20,245.28 and 9,560.20

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Solution

The fourth proportional to 13,507.79, 20,245.28 and 9,560.20 is: 14,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.79 : 20,245.28 = 9,560.20 : x
  2. Step 2: Convert to fraction form
    13,507.79/20,245.28 = 9,560.20/x
  3. Step 3: Cross multiply
    13,507.79x = 20,245.28 × 9,560.20
  4. Step 4: Simplify right side
    13,507.79x = 193,548,962.67
  5. Step 5: Solve for x
    x = 193,548,962.67/13,507.79
  6. Step 6: Final answer
    x = 14,328.69

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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.