Home / 13,758.20-20,637.30-4,993.40

Finding the Fourth Proportional to 13,758.20, 20,637.30 and 4,993.40

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Solution

The fourth proportional to 13,758.20, 20,637.30 and 4,993.40 is: 7,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.20 : 20,637.30 = 4,993.40 : x
  2. Step 2: Convert to fraction form
    13,758.20/20,637.30 = 4,993.40/x
  3. Step 3: Cross multiply
    13,758.20x = 20,637.30 × 4,993.40
  4. Step 4: Simplify right side
    13,758.20x = 103,050,293.82
  5. Step 5: Solve for x
    x = 103,050,293.82/13,758.20
  6. Step 6: Final answer
    x = 7,490.10

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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.