Home / 13,412.79-20,122.83-9,541.80

Finding the Fourth Proportional to 13,412.79, 20,122.83 and 9,541.80

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Solution

The fourth proportional to 13,412.79, 20,122.83 and 9,541.80 is: 14,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.79 : 20,122.83 = 9,541.80 : x
  2. Step 2: Convert to fraction form
    13,412.79/20,122.83 = 9,541.80/x
  3. Step 3: Cross multiply
    13,412.79x = 20,122.83 × 9,541.80
  4. Step 4: Simplify right side
    13,412.79x = 192,008,019.29
  5. Step 5: Solve for x
    x = 192,008,019.29/13,412.79
  6. Step 6: Final answer
    x = 14,315.29

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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.