Home / 13,746.11-20,617.74-4,860

Finding the Fourth Proportional to 13,746.11, 20,617.74 and 4,860

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Solution

The fourth proportional to 13,746.11, 20,617.74 and 4,860 is: 7,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.11 : 20,617.74 = 4,860 : x
  2. Step 2: Convert to fraction form
    13,746.11/20,617.74 = 4,860/x
  3. Step 3: Cross multiply
    13,746.11x = 20,617.74 × 4,860
  4. Step 4: Simplify right side
    13,746.11x = 100,202,216.40
  5. Step 5: Solve for x
    x = 100,202,216.40/13,746.11
  6. Step 6: Final answer
    x = 7,289.50

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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.