Home / 13,803.65-20,711.55-6,404.30

Finding the Fourth Proportional to 13,803.65, 20,711.55 and 6,404.30

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Solution

The fourth proportional to 13,803.65, 20,711.55 and 6,404.30 is: 9,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.65 : 20,711.55 = 6,404.30 : x
  2. Step 2: Convert to fraction form
    13,803.65/20,711.55 = 6,404.30/x
  3. Step 3: Cross multiply
    13,803.65x = 20,711.55 × 6,404.30
  4. Step 4: Simplify right side
    13,803.65x = 132,642,979.67
  5. Step 5: Solve for x
    x = 132,642,979.67/13,803.65
  6. Step 6: Final answer
    x = 9,609.27

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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.