Home / 13,368.14-20,040.93-8,426.89

Finding the Fourth Proportional to 13,368.14, 20,040.93 and 8,426.89

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Solution

The fourth proportional to 13,368.14, 20,040.93 and 8,426.89 is: 12,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.14 : 20,040.93 = 8,426.89 : x
  2. Step 2: Convert to fraction form
    13,368.14/20,040.93 = 8,426.89/x
  3. Step 3: Cross multiply
    13,368.14x = 20,040.93 × 8,426.89
  4. Step 4: Simplify right side
    13,368.14x = 168,882,662.51
  5. Step 5: Solve for x
    x = 168,882,662.51/13,368.14
  6. Step 6: Final answer
    x = 12,633.22

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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.