Home / 13,918.13-20,880.43-4,684.13

Finding the Fourth Proportional to 13,918.13, 20,880.43 and 4,684.13

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Solution

The fourth proportional to 13,918.13, 20,880.43 and 4,684.13 is: 7,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.13 : 20,880.43 = 4,684.13 : x
  2. Step 2: Convert to fraction form
    13,918.13/20,880.43 = 4,684.13/x
  3. Step 3: Cross multiply
    13,918.13x = 20,880.43 × 4,684.13
  4. Step 4: Simplify right side
    13,918.13x = 97,806,532.46
  5. Step 5: Solve for x
    x = 97,806,532.46/13,918.13
  6. Step 6: Final answer
    x = 7,027.28

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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.