Home / 13,527.83-20,291.51-5,209.65

Finding the Fourth Proportional to 13,527.83, 20,291.51 and 5,209.65

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Solution

The fourth proportional to 13,527.83, 20,291.51 and 5,209.65 is: 7,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.83 : 20,291.51 = 5,209.65 : x
  2. Step 2: Convert to fraction form
    13,527.83/20,291.51 = 5,209.65/x
  3. Step 3: Cross multiply
    13,527.83x = 20,291.51 × 5,209.65
  4. Step 4: Simplify right side
    13,527.83x = 105,711,639.02
  5. Step 5: Solve for x
    x = 105,711,639.02/13,527.83
  6. Step 6: Final answer
    x = 7,814.39

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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.