Home / 13,948.93-20,918.13-5,626.81

Finding the Fourth Proportional to 13,948.93, 20,918.13 and 5,626.81

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Solution

The fourth proportional to 13,948.93, 20,918.13 and 5,626.81 is: 8,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.93 : 20,918.13 = 5,626.81 : x
  2. Step 2: Convert to fraction form
    13,948.93/20,918.13 = 5,626.81/x
  3. Step 3: Cross multiply
    13,948.93x = 20,918.13 × 5,626.81
  4. Step 4: Simplify right side
    13,948.93x = 117,702,343.07
  5. Step 5: Solve for x
    x = 117,702,343.07/13,948.93
  6. Step 6: Final answer
    x = 8,438.09

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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.