Home / 13,619.01-18,793.20-7,649.53

Finding the Fourth Proportional to 13,619.01, 18,793.20 and 7,649.53

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Solution

The fourth proportional to 13,619.01, 18,793.20 and 7,649.53 is: 10,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.01 : 18,793.20 = 7,649.53 : x
  2. Step 2: Convert to fraction form
    13,619.01/18,793.20 = 7,649.53/x
  3. Step 3: Cross multiply
    13,619.01x = 18,793.20 × 7,649.53
  4. Step 4: Simplify right side
    13,619.01x = 143,759,091.71
  5. Step 5: Solve for x
    x = 143,759,091.71/13,619.01
  6. Step 6: Final answer
    x = 10,555.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.