Home / 13,425.99-20,139.19-4,661.18

Finding the Fourth Proportional to 13,425.99, 20,139.19 and 4,661.18

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Solution

The fourth proportional to 13,425.99, 20,139.19 and 4,661.18 is: 6,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.99 : 20,139.19 = 4,661.18 : x
  2. Step 2: Convert to fraction form
    13,425.99/20,139.19 = 4,661.18/x
  3. Step 3: Cross multiply
    13,425.99x = 20,139.19 × 4,661.18
  4. Step 4: Simplify right side
    13,425.99x = 93,872,428.34
  5. Step 5: Solve for x
    x = 93,872,428.34/13,425.99
  6. Step 6: Final answer
    x = 6,991.84

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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.