Home / 13,135.98-19,688.85-5,738.70

Finding the Fourth Proportional to 13,135.98, 19,688.85 and 5,738.70

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Solution

The fourth proportional to 13,135.98, 19,688.85 and 5,738.70 is: 8,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.98 : 19,688.85 = 5,738.70 : x
  2. Step 2: Convert to fraction form
    13,135.98/19,688.85 = 5,738.70/x
  3. Step 3: Cross multiply
    13,135.98x = 19,688.85 × 5,738.70
  4. Step 4: Simplify right side
    13,135.98x = 112,988,403.50
  5. Step 5: Solve for x
    x = 112,988,403.50/13,135.98
  6. Step 6: Final answer
    x = 8,601.44

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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.