Home / 13,151.40-19,742.70-7,608.60

Finding the Fourth Proportional to 13,151.40, 19,742.70 and 7,608.60

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Solution

The fourth proportional to 13,151.40, 19,742.70 and 7,608.60 is: 11,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.40 : 19,742.70 = 7,608.60 : x
  2. Step 2: Convert to fraction form
    13,151.40/19,742.70 = 7,608.60/x
  3. Step 3: Cross multiply
    13,151.40x = 19,742.70 × 7,608.60
  4. Step 4: Simplify right side
    13,151.40x = 150,214,307.22
  5. Step 5: Solve for x
    x = 150,214,307.22/13,151.40
  6. Step 6: Final answer
    x = 11,421.93

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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.