Home / 13,559.65-20,337.60-4,206.10

Finding the Fourth Proportional to 13,559.65, 20,337.60 and 4,206.10

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Solution

The fourth proportional to 13,559.65, 20,337.60 and 4,206.10 is: 6,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.65 : 20,337.60 = 4,206.10 : x
  2. Step 2: Convert to fraction form
    13,559.65/20,337.60 = 4,206.10/x
  3. Step 3: Cross multiply
    13,559.65x = 20,337.60 × 4,206.10
  4. Step 4: Simplify right side
    13,559.65x = 85,541,979.36
  5. Step 5: Solve for x
    x = 85,541,979.36/13,559.65
  6. Step 6: Final answer
    x = 6,308.57

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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.