Home / 13,580.42-20,376.23-5,977.80

Finding the Fourth Proportional to 13,580.42, 20,376.23 and 5,977.80

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Solution

The fourth proportional to 13,580.42, 20,376.23 and 5,977.80 is: 8,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.42 : 20,376.23 = 5,977.80 : x
  2. Step 2: Convert to fraction form
    13,580.42/20,376.23 = 5,977.80/x
  3. Step 3: Cross multiply
    13,580.42x = 20,376.23 × 5,977.80
  4. Step 4: Simplify right side
    13,580.42x = 121,805,048.24
  5. Step 5: Solve for x
    x = 121,805,048.24/13,580.42
  6. Step 6: Final answer
    x = 8,969.17

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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.