Home / 13,543.07-20,313.05-3,681.59

Finding the Fourth Proportional to 13,543.07, 20,313.05 and 3,681.59

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Solution

The fourth proportional to 13,543.07, 20,313.05 and 3,681.59 is: 5,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.07 : 20,313.05 = 3,681.59 : x
  2. Step 2: Convert to fraction form
    13,543.07/20,313.05 = 3,681.59/x
  3. Step 3: Cross multiply
    13,543.07x = 20,313.05 × 3,681.59
  4. Step 4: Simplify right side
    13,543.07x = 74,784,201.78
  5. Step 5: Solve for x
    x = 74,784,201.78/13,543.07
  6. Step 6: Final answer
    x = 5,521.96

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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.