Home / 13,869.30-20,805.09-4,509.10

Finding the Fourth Proportional to 13,869.30, 20,805.09 and 4,509.10

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Solution

The fourth proportional to 13,869.30, 20,805.09 and 4,509.10 is: 6,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.30 : 20,805.09 = 4,509.10 : x
  2. Step 2: Convert to fraction form
    13,869.30/20,805.09 = 4,509.10/x
  3. Step 3: Cross multiply
    13,869.30x = 20,805.09 × 4,509.10
  4. Step 4: Simplify right side
    13,869.30x = 93,812,326.25
  5. Step 5: Solve for x
    x = 93,812,326.25/13,869.30
  6. Step 6: Final answer
    x = 6,764.03

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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.