Home / 13,527.11-18,660.61-9,051.05

Finding the Fourth Proportional to 13,527.11, 18,660.61 and 9,051.05

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Solution

The fourth proportional to 13,527.11, 18,660.61 and 9,051.05 is: 12,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.11 : 18,660.61 = 9,051.05 : x
  2. Step 2: Convert to fraction form
    13,527.11/18,660.61 = 9,051.05/x
  3. Step 3: Cross multiply
    13,527.11x = 18,660.61 × 9,051.05
  4. Step 4: Simplify right side
    13,527.11x = 168,898,172.11
  5. Step 5: Solve for x
    x = 168,898,172.11/13,527.11
  6. Step 6: Final answer
    x = 12,485.90

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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.