Home / 13,529.12-18,670.08-7,560.80

Finding the Fourth Proportional to 13,529.12, 18,670.08 and 7,560.80

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Solution

The fourth proportional to 13,529.12, 18,670.08 and 7,560.80 is: 10,433.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.12 : 18,670.08 = 7,560.80 : x
  2. Step 2: Convert to fraction form
    13,529.12/18,670.08 = 7,560.80/x
  3. Step 3: Cross multiply
    13,529.12x = 18,670.08 × 7,560.80
  4. Step 4: Simplify right side
    13,529.12x = 141,160,740.86
  5. Step 5: Solve for x
    x = 141,160,740.86/13,529.12
  6. Step 6: Final answer
    x = 10,433.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.