Home / 13,353.76-20,019.84-5,568.40

Finding the Fourth Proportional to 13,353.76, 20,019.84 and 5,568.40

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Solution

The fourth proportional to 13,353.76, 20,019.84 and 5,568.40 is: 8,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.76 : 20,019.84 = 5,568.40 : x
  2. Step 2: Convert to fraction form
    13,353.76/20,019.84 = 5,568.40/x
  3. Step 3: Cross multiply
    13,353.76x = 20,019.84 × 5,568.40
  4. Step 4: Simplify right side
    13,353.76x = 111,478,477.06
  5. Step 5: Solve for x
    x = 111,478,477.06/13,353.76
  6. Step 6: Final answer
    x = 8,348.10

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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.