Home / 13,120.34-19,685.07-4,355.94

Finding the Fourth Proportional to 13,120.34, 19,685.07 and 4,355.94

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Solution

The fourth proportional to 13,120.34, 19,685.07 and 4,355.94 is: 6,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.34 : 19,685.07 = 4,355.94 : x
  2. Step 2: Convert to fraction form
    13,120.34/19,685.07 = 4,355.94/x
  3. Step 3: Cross multiply
    13,120.34x = 19,685.07 × 4,355.94
  4. Step 4: Simplify right side
    13,120.34x = 85,746,983.82
  5. Step 5: Solve for x
    x = 85,746,983.82/13,120.34
  6. Step 6: Final answer
    x = 6,535.42

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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.