Home / 10,090.75-13,925.45-5,615.30

Finding the Fourth Proportional to 10,090.75, 13,925.45 and 5,615.30

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Solution

The fourth proportional to 10,090.75, 13,925.45 and 5,615.30 is: 7,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.75 : 13,925.45 = 5,615.30 : x
  2. Step 2: Convert to fraction form
    10,090.75/13,925.45 = 5,615.30/x
  3. Step 3: Cross multiply
    10,090.75x = 13,925.45 × 5,615.30
  4. Step 4: Simplify right side
    10,090.75x = 78,195,579.39
  5. Step 5: Solve for x
    x = 78,195,579.39/10,090.75
  6. Step 6: Final answer
    x = 7,749.23

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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.