Home / 13,506.28-20,259.60-5,709.40

Finding the Fourth Proportional to 13,506.28, 20,259.60 and 5,709.40

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Solution

The fourth proportional to 13,506.28, 20,259.60 and 5,709.40 is: 8,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.28 : 20,259.60 = 5,709.40 : x
  2. Step 2: Convert to fraction form
    13,506.28/20,259.60 = 5,709.40/x
  3. Step 3: Cross multiply
    13,506.28x = 20,259.60 × 5,709.40
  4. Step 4: Simplify right side
    13,506.28x = 115,670,160.24
  5. Step 5: Solve for x
    x = 115,670,160.24/13,506.28
  6. Step 6: Final answer
    x = 8,564.18

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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.