Home / 13,371.80-20,064.90-5,977.40

Finding the Fourth Proportional to 13,371.80, 20,064.90 and 5,977.40

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Solution

The fourth proportional to 13,371.80, 20,064.90 and 5,977.40 is: 8,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.80 : 20,064.90 = 5,977.40 : x
  2. Step 2: Convert to fraction form
    13,371.80/20,064.90 = 5,977.40/x
  3. Step 3: Cross multiply
    13,371.80x = 20,064.90 × 5,977.40
  4. Step 4: Simplify right side
    13,371.80x = 119,935,933.26
  5. Step 5: Solve for x
    x = 119,935,933.26/13,371.80
  6. Step 6: Final answer
    x = 8,969.32

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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.