Home / 13,490.77-20,245.14-4,725.67

Finding the Fourth Proportional to 13,490.77, 20,245.14 and 4,725.67

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Solution

The fourth proportional to 13,490.77, 20,245.14 and 4,725.67 is: 7,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.77 : 20,245.14 = 4,725.67 : x
  2. Step 2: Convert to fraction form
    13,490.77/20,245.14 = 4,725.67/x
  3. Step 3: Cross multiply
    13,490.77x = 20,245.14 × 4,725.67
  4. Step 4: Simplify right side
    13,490.77x = 95,671,850.74
  5. Step 5: Solve for x
    x = 95,671,850.74/13,490.77
  6. Step 6: Final answer
    x = 7,091.65

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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.