Home / 13,482.78-20,225.13-4,719.90

Finding the Fourth Proportional to 13,482.78, 20,225.13 and 4,719.90

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Solution

The fourth proportional to 13,482.78, 20,225.13 and 4,719.90 is: 7,080.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.78 : 20,225.13 = 4,719.90 : x
  2. Step 2: Convert to fraction form
    13,482.78/20,225.13 = 4,719.90/x
  3. Step 3: Cross multiply
    13,482.78x = 20,225.13 × 4,719.90
  4. Step 4: Simplify right side
    13,482.78x = 95,460,591.09
  5. Step 5: Solve for x
    x = 95,460,591.09/13,482.78
  6. Step 6: Final answer
    x = 7,080.19

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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.