Home / 13,155.42-19,740.42-5,363.63

Finding the Fourth Proportional to 13,155.42, 19,740.42 and 5,363.63

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Solution

The fourth proportional to 13,155.42, 19,740.42 and 5,363.63 is: 8,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.42 : 19,740.42 = 5,363.63 : x
  2. Step 2: Convert to fraction form
    13,155.42/19,740.42 = 5,363.63/x
  3. Step 3: Cross multiply
    13,155.42x = 19,740.42 × 5,363.63
  4. Step 4: Simplify right side
    13,155.42x = 105,880,308.92
  5. Step 5: Solve for x
    x = 105,880,308.92/13,155.42
  6. Step 6: Final answer
    x = 8,048.42

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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.